Initial commit
Finish the code of qdisksync for basic file copy.
Fix the error of deadlock of infinite loop
Fix the error of single copy thread cannot execute after main thread exitswq
Delete old main code.
Clear the content of this assistant files.
Move the file open operation to go routine.
Fix debug msg errorwq
Merge branch 'master' of https://coding.net/jemygraw/qdisksync
Change log level for cache file and use good code style for sync
Add a files total size scriptwq
Fix some errors
Make parameter `buffer_size` and `worker_count` optional.
Let user determine what cache file they want to use.
Add tool readme file as a tutorial.