add mtbf_check_resource
Merge branch 'master' of https://github.com/Mozilla-TWQA/mtbf_operation
Add about memory collection
Merge branch 'master' of https://github.com/Mozilla-TWQA/mtbf_operation
Merge branch 'master' of https://github.com/Mozilla-TWQA/mtbf_operation
Enrich make functions; add device lock/resource management utils
Device pool for acquiring devices from local machine and creating lock for protection