Loosen the database type validation logic supported by DatabaseTypeChecker.

[fanpipi]

Question

When I attempt to adapt a new database type, even if I implement the corresponding DatabaseType and DataSourceMetaData in the introduced extension package, it fails to pass the database type verification by DatabaseTypeChecker.
Perhaps the database type verification should be relaxed to facilitate adaptation to new database types? Or could there be other concerns from the authors or limitations within the project that prevent support for adapting to other databases?

Loosen database type validation as shown in the figure below.

Project Version

ShardingSphere-Proxy:5.4.0

[terrymanu]

For dev problem, we can move it to discussions.