[dev-libs/extra-cmake-modules] Version bump.

Package-Manager: portage-2.2.7
[eclass] Bump required extra-cmake-modules version.
[profiles/package.mask] Mask KF5 alpha 1.
[sets] Update kde-frameworks-live.
[profiles/package.mask] Add missing mask file.
[kde-frameworks] Bump alpha 1 - 4.96.0
[Documentation/maintainers] Add to support non-kde-base categories.
[kde-frameworks] Remove 4.95.0
[profiles/package.mask] Remove obsolete mask.