IDEA-122883 Log should refreshes immediately after pull
[log] Extract UpdatableIntToIntMap interface.
[log] Add ListIntToIntMap and use it instead TreeIntToIntMap.
[log] Delete old GraphFacade.
[log] Move ColorGenerator.
[log] Move GraphCommitCell.
[log] Move GraphAction & ActionRequest classes to vcs-log-api.
[log] Move Flags.
[log] Move PrintParameters.
[log] Move IntToIntMap and relative files to log.facade.utils package.
[log] Fix 0 size for IntToIntMaps.
[log] Move PermanentGraph and relative files to log.facade.graph.permanent package.
[log] Add BitSetFlags.
[log] Use BitSetFlags in PermanentGraphBuilder.
[log] Add IntList.
[log] Use IntList for big int arrays.