- Updated and synced module documentation with other similar find
modules.
- Renamed "functions" to more general word "commands". Knowing if some
module command is a function or a macro is from the user PoV mostly
irrelevant and it also fits nicer with the rest of the modules.
- Reworded descriptions to make this module slightly clearer to
understand.
- Moved examples section after commands and added example descriptions.
Since commit d74210a8bd (CMP0017: Remove support for OLD behavior,
2024-11-17) we can rely on CMP0017's NEW behavior unconditionally.
Calling `include(FindPackageHandleStandardArgs)` in a builtin module
will always get the builtin `FindPackageHandleStandardArgs`.