Squashed 'includes/libraries/aihrus-framework/' changes from 8b57fc4..3a2eca2

3a2eca2 Use $plugin_assets than $plugin_path
f2e415a Use $plugin_assets than $plugin_path
d86748b Update usage instructions
d05e1f3 Add phpunit.xml

git-subtree-dir: includes/libraries/aihrus-framework
git-subtree-split: 3a2eca20975913cf6996b80878ff4bc37bf4a731
Update aihrus framework