TEIID-2687: 1)Added read-translator-properties CLI command to read the translator extension properties
2) Added getTranslatorPropertyDefinitions method to the Admin API to issue the query over CLI to read the translator extension properties
3) Added the same in AdminShell interface
4) Added a integration test
Merge pull request #138 from rareddy/TEIID-2687

TEIID-2687