exasol cdc sync users

Today, cdc does not create users in exasol.

This is a security issue as all queries funnel through the same service user.
This will require mapping user grants from mariadb to exasol

Phase 1 seeks basic global level, database & table level grants and permissions to be sync'd
https://mariadbcorp.atlassian.net/browse/MSQA-61

MariaDB: https://mariadb.com/docs/server/reference/sql-statements/account-management-sql-statements/grant
Exasol: https://docs.exasol.com/db/latest/database_concepts/privileges/details_rights_management.htm

Exasol's privilege model splits privileges into two scopes:

• System privileges — granted like GRANT CREATE TABLE TO user;. No object named in the grant. Once a user has it, the privilege applies everywhere they have schema access — there's no ON schema_name clause possible.
• Object privileges — granted like GRANT SELECT ON schema.table TO user;. These do name a specific object, and only apply to that object.

Example:
MariaDB:

GRANT CREATE TABLE TO user;

Get converted to Exasol:

GRANT CREATE TABLE ANY SCHEMA TO user;