Add commands in MFHM shell
Tested (bugs fized)
с учетом некоторых замечаний
Added tests for Table
tests for Table with good coverage
CodeSryle + Optimization
tmp commit
almost add TableProviderTest
multifile
add
Fixed problem with redundant output in commit command
Added standard library implementation
+fixed rollback problem
MultiFileHashMap
checkstyle fixes
one more checkstyle fix
Realization of DataBaseLibrary without testing
Create working directory if if doesn't exist
Merge branch 'MutiFileHashMap' into JUnit
Added list, put and get tests, fixed small bugs
Added remove and size tests