CMakeRCInformation: Do not mention 'Fortran' in documentation

This module is for the Windows Resource Compiler, not Fortran.
CMakeRCInformation: Recognize 'windres' tools with '.' in name (#14865)

A 64-bit MinGW windres is named "i686-w64-mingw32.shared-windres".  The
get_filename_component NAME_WE mode may strip the ".shared-windres" part
and cause the result to no longer contain "windres".  Instead, match the
"windres" name in the full CMAKE_RC_COMPILER value first, and use the
get_filename_component code path only for other resource compilers.
Merge topic 'rc-windres-with-dot' into next

613666e1 CMakeRCInformation: Recognize 'windres' tools with '.' in name (#14865)
96bc9ecb CMakeRCInformation: Do not mention 'Fortran' in documentation