Provide schema type enumeration [DBZ-8894]

Migrated from [DBZ-8894](https://issues.redhat.com/browse/DBZ-8894)

org.apache.connect.data provides a convenient Schema.Type  enumeration. However, Debezium also defines a bunch of logical/semantic types. Consequently building change consumers can be rather tricky since implementors need to be aware of these and don't really have a way to list/enumerate these types

Would it be possible to provide some kind of enumeration? We could either maintain enumeration of such types manually or create an annotation processor which would generate such enum for us.