Delta Sharing 0.6.0

We are excited to announce the release of Delta Sharing 0.6.0, which introduces the following improvements.

Improvements:

• Support using a delta sharing table as a source in spark structured streaming, which allows recipients to stay up to date with the shared data. (#189, #190, #194, #195, #198, #199, #200, #201, #204, #205, #207, #208, #209, #211, #212, #214, #216, #217, #218, #219)
• Fix a few nits in the PROTOCOL documentation (#213)
• Support timestampAsOf parameter in delta sharing data source. (#186, #187, #188)

Credits: Abhijit Chakankar, Lin Zhou, Xiaotong Sun