Introduce `term_template` param to `get_the_taxonomies()`.

This parameter allows theme and plugin authors to specify the formatting they
would like on the term links as they are parsed into the taxonomy list.

Props hereswhatidid, dlh, davidjlaietta.
See #27238.

git-svn-id: https://develop.svn.wordpress.org/trunk@30209 602fd350-edb4-49c9-b593-d223f7449a82
Improve docblocks for `get_the_taxonomies()` and `the_taxonomies()`.

* In `the_taxonomies()`, only document those arguments that are specific to the function. Arguments shared with `get_the_taxonomies()` should be documented in the later function's docblock.
* Add $args hash documentation to `get_the_taxonomies()`.
* Remove the redundant default argument definition in `the_taxonomies()`.

Fixes #27238.

git-svn-id: https://develop.svn.wordpress.org/trunk@30210 602fd350-edb4-49c9-b593-d223f7449a82