DBZ-3499 Add support for parsing of newer MySQL privileges

[tommyk-gears]

Added the privileges listed at https://dev.mysql.com/doc/refman/8.0/en/privileges-provided.html to the MySQL parser (note that Table 6.3 on that page is incomplete, there are privileges not listed in that table but documented further down in the document, e.g. SERVICE_CONNECTION_ADMIN)

[jpechane]

@tommyk-gears Hi, thanks for the PR, it looks good!
I'd just propose one change, I'd recommend to add the test statements into debezium-ddl-parser/src/test/resources/mysql/examples/grant.sql instead of the Java code.
When done could you please also prepare a PR to the upstream grammar - https://github.com/antlr/grammars-v4/tree/master/sql/mysql/Positive-Technologies
With the example statements moved to the SQL file you'd be able to prepare it with almost no problem.

[jpechane]

@tommyk-gears I am doing a release today so I took a liberty and did the changes, could you please still prepare the usptream PR and link it here?

[tommyk-gears]

@jpechane Thanks for quick feedback and for fixing my messy test case!
I created the upstream PR here: antlr/grammars-v4#2184

[jpechane]

@tommyk-gears Thanks a lot!