Добавил fileMap

fileMap
Update FileMap.java
Create Main.java
MultiFileHashMap
first version of 3d task
Final
Added own exceptions and exceptions when the path is not given, corrected the order of information in file
Removed debug lines
Imported current version from 04-JUnit.
Used Storeable, added serialization skeleton, refactored Command-s.
Updated tests (yet non-functional).
First commit after reafctoring: added commit and rollback without changing size of tables
JUnit (half)
Merge branch 'FileMap' into MultyFileMap
Merge branch 'FileMap' into JUnit
Все пашет
new commands implemented, factory created, no tests
property removed
tests added, bug with remove found
New Task: JUnit