Made nonDollarVirtualColumnsEnabled member of SQLSchemaUtils

[rakhiagr]

The other GMS could have used the methods defined in SQLSchemaUtils. The last change to add boolean nonDollarVirtualColumnsEnabled will break those GMSes once they bump their version.

I have made nonDollarVirtualColumnsEnabled a static member of SQLSchemaUtils which can be initialized when we create an instance of EbeanLocalAccess to set the value of nonDollarVirtualColumnsEnabled and be consistent with the whole instance.

Testing

./gradlew build

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Links to related issues (if applicable)
• Tests for the changes have been added/updated (if applicable)
• Docs related to the changes have been added/updated (if applicable)

[yangyangv2]

This global static verifiable setting is unintuitive and error prone. Can we make the fix the ai-metadata-gms instead of including hack solution?