[gapp] Update to 1.0.1

[SunBlack (SunBlack)]

• 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, or no changes were necessary.
• Any fixed CI baseline and CI feature baseline entries are removed from that file, or no entries needed to be changed.
• All patch files in the port are applied and succeed.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Exactly one version is added in each modified versions file.

[Billy O'Neal (BillyONeal)]

Thanks for the update! GPT 5.6 Sol reports:

• The Windows static archives are installed under configuration subdirectories (lib/Release and debug/lib/Debug) rather than vcpkg's normal lib and debug/lib locations because upstream appends $<CONFIG> to every library install destination. Consequently, consumers that include the package headers and link the libraries exposed in the standard vcpkg library directories receive no gapp library and fail with unresolved externals.
• Release direct linking also fails when the misplaced archive is supplied manually unless GAPP_BUILD_STATIC is defined, because the public headers otherwise declare Windows symbols as dllimport.
• The custom usage file is substantially identical to vcpkg print-usage gapp --generated

Would you consider merging SunBlack#35 ?