Add warning to fhir-persistence-schema about the plan to remove the Resource and DomainResource table groups

[lmsurpre]

Is your feature request related to a problem? Please describe.
We plan to remove these tables under #713 but we don't want to break anyone that might be using these tables for something (though our schema does not).

Therefore lets do just a warning in 4.9 and save the actual removal for a future release.

Describe the solution you'd like
In 4.9.0 release notes, add a note under the "deprecated" section that we plan to remove the Resource and DomainResource tables in the next minor release (e.g. 4.10).

Add warning in fhir-persistence-schema output stating that we plan to delete data in the next release.

Describe alternatives you've considered
Just don't do it

Acceptance Criteria

1. GIVEN [a precondition]
   AND [another precondition]
   WHEN [test step]
   AND [test step]
   THEN [verification step]
   AND [verification step]

Additional context

[tbieste]

Confirming the full list of tables to be "deprecated":

DOMAINRESOURCE_DATE_VALUES
DOMAINRESOURCE_LATLNG_VALUES
DOMAINRESOURCE_LOGICAL_RESOURCES
DOMAINRESOURCE_NUMBER_VALUES
DOMAINRESOURCE_QUANTITY_VALUES
DOMAINRESOURCE_RESOURCE_TOKEN_REFS
DOMAINRESOURCE_RESOURCES
DOMAINRESOURCE_STR_VALUES
RESOURCE_DATE_VALUES
RESOURCE_LATLNG_VALUES
RESOURCE_LOGICAL_RESOURCES
RESOURCE_NUMBER_VALUES
RESOURCE_QUANTITY_VALUES
RESOURCE_RESOURCE_TOKEN_REFS
RESOURCE_RESOURCES
RESOURCE_STR_VALUES

There's a few other tables that start with RESOURCE_xxxx, but those should remain.

[lmsurpre]

Yes, that looks right to me.

[prb112]

QA results for Postgres.
It looks good.

2021-06-03 12:22:22.798 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'DOMAINRESOURCE_DATE_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'DOMAINRESOURCE_LATLNG_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'DOMAINRESOURCE_LOGICAL_RESOURCES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'DOMAINRESOURCE_NUMBER_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'DOMAINRESOURCE_QUANTITY_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'DOMAINRESOURCE_RESOURCE_TOKEN_REFS' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'DOMAINRESOURCE_RESOURCES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'DOMAINRESOURCE_STR_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'RESOURCE_DATE_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'RESOURCE_LATLNG_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'RESOURCE_LOGICAL_RESOURCES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'RESOURCE_NUMBER_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'RESOURCE_QUANTITY_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'RESOURCE_RESOURCE_TOKEN_REFS' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'RESOURCE_RESOURCES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001 WARNING   com.ibm.fhir.schema.app.Main Table 'RESOURCE_STR_VALUES' will be dropped in a future release. No data should be written to this table. If any data exists in the table, that data should be deleted.
2021-06-03 12:22:22.799 00000001    INFO   com.ibm.fhir.schema.app.Main Processing took:  80.604 s
2021-06-03 12:22:22.800 00000001    INFO   com.ibm.fhir.schema.app.Main SCHEMA CHANGE: OK