Squashed 'includes/libraries/aihrus-framework/' changes from 2153be3..ee2084c

ee2084c Return if library class exists already

git-subtree-dir: includes/libraries/aihrus-framework
git-subtree-split: ee2084c38e9ad510642171bd6e43fa2afb1c6b02
Merge commit '1eb69660a7b090b1f2fa7b927bb0b266752b59fc' into 2.19.3