When running tests, discovered a number of typos in builder.inc.sh.
Also fixup pathing for builder include for all scripts under resources/
to ensure that we can maximize performance.
Appending a `+` to a builder option will automatically pass that option to child scripts.
Applying #8371 to master branch and @darcywong00 will then re-apply to #7407
Fixes#8373.
Note that the core functionality requested in #8373 is already in place;
this commit just does some cleanup to make this easier to maintain in
the future:
* Uses `builder_is_debug_build` function to test for debug build
(instead of `builder_has_option --debug`, which would also work but
using the other function avoids typo issues with the option name).
* Renames `$_builder_debug` to `$_builder_debug_internal` to reduce
naming confusion
* Documents `$builder_debug`, `builder_is_debug_build`, and clarifies
usage of `--debug` option.
* Logs command line for dep builds (we could hide this in the future,
but it certainly doesn't hurt for now!)
* `builder_has_action` renamed to `builder_start_action`
* `builder_report` renamed to `builder_finish_action`
* `builder_has_action` created to be a silent test for the action
* Added reasonably comprehensive documentation.
