Merge topic 'fetchcontent-direct'

7bf15e49a8 ExternalProject: Fix misleading git update output
b2496bf14c FetchContent: Populate directly without a sub-build
173daad58d ExternalProject: Move more internal commands out of main file
462e583267 ExternalProject: Switch download, update and patch to use _EP_ vars
0ccc8e340d ExternalProject: Provide ExternalProject_Add keywords through a macro
91e1015722 ExternalProject: Don't treat YES as a keyword
a1743ce1ef ExternalProject: Fix minor formatting error

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: scivision <michael@scivision.dev>
Merge-request: !9513