Options, Meta APIs: Rename prime_options() to wp_load_options().
This clearly separates these functions which are intended to be used by external developers from the existing _prime_*_caches() functions which are primarily intended for internal usage. The term "load" is additionally more accessible than "prime".
This changeset renames the above function, as well as the wrapper function prime_options_by_group() to wp_load_options_by_group().
Props peterwilsoncc, joemcgill, hellofromTonya, poran766, flixos90.
Fixes #58962.