[TASK] Prepare tmhOAuth library for subree usage
[FEATURE] Add Bing API test script
Squashed 'dataimport/php/library/tmhOAuth/' content from commit 02dd58b

git-subtree-dir: dataimport/php/library/tmhOAuth
git-subtree-split: 02dd58b9ba12ab6b8a0d7781ef6586b2a3c8da43
Merge commit '9341c6e82337b4c1825f3f6d7949feeb609944b8' as 'dataimport/php/library/tmhOAuth'
[DOCUMENTATION] Add notice regarding git subtree usage for 3rd-party-libraries