[Delta] Block alter command from overriding or unsetting coordinated commits properties

[yumingxuanguo-db]

1. Blocks ALTER TABLE command from setting Coordinated Commits properties if the table already had them. If the table did not have them, checks that the CC property overrides contains exactly Coordinator Name and Coordinator Conf, no Table Conf.
2. Blocks ALTER TABLE command from unsetting Coordinated Commits properties if the table already has them.
3. Added UTs for both cases. Moved the UT to a new suite CoordinatedCommitsUtilsSuite.scala.
4. Renamed some methods for clarity.

Which Delta project/connector is this regarding?

• Spark
• Standalone
• Flink
• Kernel
• Other (fill in here)

Description

How was this patch tested?

UTs.

Does this PR introduce any user-facing changes?

No.

[prakharjain09]

Some UTs have been deleted. Maybe an issue in adding new file to git commit.