libszdist

Fix bug #12387.

Change the build system from qmake to CMake, and produce a Windows installer for easy setup and use.

- Rename utility szdist to szinv.
- Windows binaries are now distributed as an installer that creates a start menu entry to open a preconfigured Bash shell, provided Git is installed.

Bug fix in szdist command line parsing.

The CPC calibration curve can now be set in a config file (INI type).
The workaround to the rebin bug (instrument of type lamp2005 only) is validated.

Fix locale in TROPOS raw and diagnostics files.

This version can read and convert TROPOS SMPS files, such as the model installed at the Observatoire Pérenne de l'Environnement (OPE), Bures, France.

This is the first release of libszdist under the terms of the GNU General Public License (GPLv3).

Implement soft X-ray charging efficiency.

Bug fix in code reading lamp2005 format files (PUY SMPS).

Bug fix release.