[qscintilla] Add CMake export

[LilyWangLL]

Fixes #36817
Usage test passed on x64-windows and x64-windows-static.

• Changes comply with the maintainer guide.
• SHA512s are updated for each updated download.
• The "supports" clause reflects platforms that may be fixed by this new version.
• Any fixed CI baseline entries are removed from that file.
• Any patches that are no longer applied are deleted from the port's directory.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is added to each modified port's versions file.

[dg0yt]

The config and target must take care of all usage requirements. When I look at share/Qt6/mkspecs/features/qscintilla2.prf, I see: Qt Widgets and (except for ios) PrintSupport.

[LilyWangLL]

The config and target must take care of all usage requirements. When I look at share/Qt6/mkspecs/features/qscintilla2.prf, I see: Qt Widgets and (except for ios) PrintSupport.

I'm sorry, I don't quite understand. Are you asking if there are other situations where the installed library has a different name?

[dg0yt]

No, I think that linking the target with location properties will not be enough with static libary linkage (if actually using a symbol from the lib).
(That's why there are wrappers and unofficial CMake config in 1000 other ports: Populate INTERFACE_LINK_LIBRARIES.)

[dg0yt]

LGTM now but I didn't test. Someone else must approve.

Thanks @LilyWangLL.

[LilyWangLL]

LGTM now but I didn't test. Someone else must approve.

Thanks @LilyWangLL.

Thanks for your help. I have tested the usage after changes, it passed on x64-windows.