Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild

Updated to v23.0.0, using the archive available on GitHub.
The subpackage GtkAda3-gl and the library libgtkada_gl.so are gone because
Removed patch GtkAda3-3.14.2-libs.patch; the unused direct dependencies are no
Added a new build dependency: Sphinx theme from readthedocs.org
The version string in 'gtkada.gpr' (SOURCE4) is now updated automatically.

Updated to v22.0.0, using the archive available on GitHub.
Changed the epoch, to mark the new upstream version scheme.
Removed year/version from the patch filenames; version control should suffice.
Added a build step to make the GtkAda User's Guide (in HTML and PDF).
Removed the GtkAda Reference Manual; build requires Gnatdoc which is not
License fields now contain SPDX license expressions.
Use 'gprinstall' instead of 'make_install' to have better control of what goes
The file 'testgtk.gpr' is now updated during prep to handle the artifacts
Fixed the package version and so-version.
The build is now staged to allow gtkada-dialog to be a position-independent
Now using the python3 macro to reference the python3 interpreter (option to
Updated the doc package license.
Removed a reference to the GtkAda Reference Manual from the GNAT Studio
Improved spec file readability.

Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild

Rebuilt with GCC 13.

Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild

Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild

Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild