[feature/twig] Unit tests for includejs

PHPBB3-11598
Merge remote-tracking branch 'remotes/cyberalien/feature/twig/includejs_tests' into feature/twig

# By Vjacheslav Trushkin
# Via Vjacheslav Trushkin
* remotes/cyberalien/feature/twig/includejs_tests:
  [feature/twig] Unit tests for includejs
[ticket/11388] includejs inherit from includeasset

Copied from the INCLUDECSS PR, since this needed to be modified.

Added checks for argument strings/anchors/http/https paths in asset files
to load files properly

PHPBB3-11388
[ticket/11388] Fixing includejs test

Changed expected output to file?(any supplied argument string)&asset_version
=($config['asset_version'])#(any supplied anchor string)

Testing lines one at a time to make checking them easier.

PHPBB3-11388