Schema reg CLI: excluded Events are still used in Transformations (thus reported as missing)

[uweschaefer]

Scenario

• new event version (e.g. V2) is created, but not yet whitelisted
• a transformation is written and added in the appropriate "registry" directory

building the schema-registry using "mvn verify" gives this error (example):
[ERROR] Version 1 or 2 does not exist for /home/user/git/schema-registry/registry/src/main/registry/foo/bar/transformations/1-2/transform.js

Workaround

the version 2 event needs to be added to the whitelist to successfully build.

• Expected behavior
  Excluded events should not be considered when checking Transformations.