- Remove freerdp-allow-compiling-with-old-c++-compiler.patch
Solve by requiring gcc12-c++ for older environments
- Adjust Requires/Obsoletes
- Merge %{name}-server-proxy%{libfreerdp_package}-devel with -devel

- Add freerdp-allow-compiling-with-old-c++-compiler.patch
* This allows building with older Leap versions which use gcc7-c++.
- Use cups-devel instead of relying on pkgconfig.
* Older Leap versions were unable to find it that way.
- Fix some package naming and versioning.

- Add sdl dependencies to build the sdl-freerdp client.
* This is due to the wlfreerdp client being deprecated.
- Cleanup specfile.
* Rely preferably on pkgconfig to pull devel packages instead of
hardcoding them.

- Update to 3.0.0:
* Support for AAD/AVD authentication
* Support for websocket transport
* Support smartcard authentication (TLS and NLA)
* Full smartcard emulation support (login with certificate + key)
* Rewritten proxy, new module API
* New reference client based on SDL2 (work in progress)
* Rewritten logging, now parsing issues are all writing to the log so
that issues with protocol incompatibilities can be easier analyzed
by just turning on logging
* Full OpenSSL 3 support
* Internal implementations for RC4, MD4 and MD5 (required for non critical
parts in RDP but not part of more recend SSL libraries)