0.3.0

• Add SysEnumerator_TextBuffer enumerators and unit test for it:
  • line enumerator
  • word enumerator
  • pattern token enumerator
  • split by tabs
  • split by pattern
• Add autohide for a progress window in a SysEnumerator_RunbaseProgress and SysEnumerator_SysOperationProgress
• Fix next method in the SysEnumeratorGroup
• SysEnumerator_QueryRun
  • Fix performance
  • Add parameter EstimatedIterations to avoid slow counting
  • Add unit test
  • Remove datasourceNo check - the enumerator should work as QueryRun and the enumerator should throw exception as QueryRun