Merge pull request #325 from emorency/OPAL-2058-Copy-Data

OPAL-2058: Refactoring of Copy Data
Remove fitlter of entities by magma script as it does not scale.
git directory moved to OPAL_HOME/data
Data export and copy views cleaning.
Option to rename a table at copy time added
OPAL-2058:Validate that we do not copy within the same datasource with the same table name