lock LoadInst
lock LoadInst
lock.cpp new
establish framework of LockInst

Signed-off-by: xiehuc <xiehuc@gmail.com>
my change
LoadInst lock
LoadInst Lock
Lock and unlock LoadInst
change my code
change my code 0.1
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Merge pull request #1 from HaoMengHIT/master

The Lock and Unlock of  LoadInst