* Ensure connection open for OE queries and fix connection disposal
- Dispose connection in Metadata service, to ensure we cleanly dispose and don't rely on garbage colleciton
- Fixed issue where if the connection was closed, expanding databases in the Server would fail. This is because SMO doesn't always reopen the connection, certainly not for Server level queries. The solution is to always check if open and reopen.
- Added unit tests for this, which required mocking the relevant IsOpen / OpenConnection methods. Refactored SMO wrapper calls into a dedicated class file to handle this
* Initial scripting commit
* Fix the script CREATE integration test
* Use language service binding queue for scripting
* Update scripting service to have methods for each operation
* Add scripter class
* Fix build break.
* Fix a few bugs
* Use scripter class instead of PeekDefinition class.
* Fix scripting test break
* Fix header incorrectly saying file is generated.
* Add localization tests to address a large block of code not covered by automation.
* Moving system usings to top of using list
* Initial metadata service and scripting service files
* Simple metadata lookup with SMO objects
* Add metadata type class
* Remove SMO from metadata service.
* Cleanup metadata service SQL
* Initial MetadataService test
* Add scripting commands
* Add metadata test case
* Remove sleep used for testing
* Use random table name in metadata test
* Add scripting tests
