This is necesary for the packaging (it is much beter to have an
"inishell-apps" folder in /usr/share than an "applications" folder)

When both a default value and precision=... where provided in the xml
file, the precision was reset to the default precision. Now the default
precision is reset to the XML provided precision.

In order to give the user the required flexibility to enter the numeric
values he/she wants to, precision specifications have been almost
everywhere in the xml files (a few places still rely on the default
settings because it makes sense). The units have also been added where
possible.

XML. Also enable 'textmode' for some raw editing elements.

Set longlabel="true" to align a list of options containing names wider
than the standard column width.

The XML files had inconsistent case for the section names, this has been fixed. A mis-indenting has been fixed in help_dev.xml

Thanks to the includes, we are now much more granular. But more work is needed with better handling of defaults, more thoughts about colors and making sure all MeteoIO and Snowpack keys are represented.

Disable panels' context menus for grouping elements that could show up on a few pixels. Minor XML tweaks and (very) minor code optimization.

Improve SNOWPACK stability corrections documentation, and a try to make a setup with very many filters more readable.

order of declaration). Add log message if reference is n/a

Fix doubled elements because of faulty XML references parsing with nested include files _and_ references. A little bit of the new meteoio.xml and some file cleanup for it

simulation. This is work in progress of course, but there's already a lot of information for
the interested user, and it should be more than enough for people knowing
INIshell v1. A few minor tweaks along the way.