This is issue 869 and is required for several reasons: 1) to make Inishell more
similar to MeteoIO, Snowpack, etc 2) because Qt6 is moving to CMake in
replacement of qmake 3) because it will "easily" allow creating native packages
for several platforms.

A wiki has been started for this.
Links to mio, sp, a3d, niviz are left in place at this point.

- Implement issue 826:
  Replicator keys can now be empty in which case they will not be tied
  to any INI structure and can spawn arbitrary INI keys.
- Numbers now do not have to be at the end of a Replicator anymore
  ("FILTER#::ARG" is acceptable now)
- A Replicator can now inject a single number into a key like
  (A#::B# --> A1::B1) if it is not nested
- Merge new debug menu entries from master (better way coming up)
- Heavy maintenance work

This is a squashed commit of 26 commits with the following commit
messages:

Split up some dynamic panels functionality
This is a first step to trying to enhance their logic.

Add test XML for dynamic panels

Try new dynamic panels syntax
At least for developing replicate=true and template=true are dropped in
favor of option nodes like in other panels.
This will make structuring clearer and can be reverted for more
stringency later.

Save possible child panels to container

String operations instead of regex

Multiple # replacements possible

Include Replicators without key to search

Detect if Replicator can replicate Replicators
... and couple this with the start of better (more clear) # --> number
substitutions
(all of these are intermediate commits)

Use info when reps can replicate reps
If not, all occurrences of "#" should be replaced
(moving forward with issue 826)

Propagate replicator child keys to potential template

Try to handle nested Replicators

Back to "replicate=true"
The added verbosity does not seem to bring benefits, and for at least
one thing it's better this way (no cascading into finding the
appropriate key, in a Selector e. g.)

Mini-Cleanup

New lookup logic for Replicators

Support 2 levels of rep/sel nesting

Cleanup
Remove lots of debug code
Add comments

Cleanup, comments

Re-add lost changes

Allow empty Replicator keys
Now if keys are empty use the new, if they are not use the old logic

Handle Replicator help

remove test xml from version control

In debug mode, show how long building XMLs takes

switch to release

Add panel search debug functions
This can be useful to check if unwanted hidden panels are somehow being
created

Add comment

The name was a relict from the very first day of project structuring,
but this name here makes for much much nicer tab-completing to source
file names...

This gets rid of an inconsistency where on macOS CMD+H was
already reserved for hiding the window. It's nicer anyway
and we get rid of an almost empty menu ("window").

Otherwise, window size settings etc. would be saved as-is on the next
program quit, making clearing these automatic position settings not
very effective (would have to go through command line args).

This is an intermediate commit.

We need to be able to set the tab bar everything gets built into... so
first, split up some functionality.

If an unknown section is encountered, check our list of dynamic sections
if it fits and should be created.

Since the tab index will change when removing other tabs, the lambda now
emits the tab name to look for and delete.

This implies having a clear parent Section with a "+", and the
duplicated templates can be removed with a "-".

Revert to idea of using a global container - it would be possible to do
it without and always search on the fly, but readability would suffer...

Now dedicated <section> tags may be flagged as templates, and the
respective tabs will show a custom button to take some action to be
implemented.

better "unsaved changes" warning.

It should finally be relatively clear to the user what happens when an
INI is opened, and closed seemingly without changing anything - namely
that the application may have inserted mandatory keys.

Add possibility to show the user guide with a specified tab opened. Use this to link to the Preview section from the preview menu.

Wrong (non-interactive) panels were passed to the INIParser. Not grave because the value
would be empty, but still this was fixed. In fact, start removing IDs
from non-interactive panels. They were given in the beginning so that
specific elements could be targeted, but this was never needed. So now
there's less object IDs flying around. There are probably more that will
be cleaned when stumbled upon, until then they do no harm.

Wrong (non-interactive) panels were passed to the INIParser. Not grave because the value
would be empty, but still this was fixed. In fact, start removing IDs
from non-interactive panels. They were given in the beginning so that
specific elements could be targeted, but this was never needed. So now
there's less object IDs flying around. There are probably more that will
be cleaned when stumbled upon, until then they do no harm.

Cleanup so that always writing out all INI values (optional ones too) is the default behavior. This promotes the hack here to a feature request.

Get rid of outdated doc concerning this. Also: Work with the full INI (file system + GUI) for the character transformations.

More integration of keyboard shortcuts: Add menu for 'refresh applications' so that the user can find the native shortcut for it. In the welcome text, use the nativ shortcut for the help hint.

Don't mention key shortcuts in the help file anymore.

Remove 'SAFE' option for dark mode, because INIshell is not going to run from the same settings on different machines... switch the settings page tab color to solarized.

Now the QPalettes are not used, but all colors go through our getQColor() function. It detects if a light or dark theme is used and swapps a few colors accordingly