DataSourceModelAccess.retrieve and related updates

[dschristianson]

Update DataSourceModelAccess.retrieve to work properly with the translate layer.

Closes #168

Highlights:

• Add translate logic to DataSourceModelAccess.retrieve method
• Removed QueryById query class and added id property to QueryBase
• Added MonitoringFeatureModelAccess.retrieve class to validate specification of `id'
• Updated translation logic of query prefixed_fields and validation of prefixed_fields
• Added tests to explicitly test the retrieve options.
• Removed use of basin3d_plugin_access decorator and made it private b/c a bug was detected. See basin3d_plugin_access decorator bug #170.

Rationale for removing QueryById:
A particular ModelAccess class (e.g., MonitoringFeatureModelAccess) should use the related query class (e.g. QueryMonitoringFeature). In particular, querying by Monitoring Feature id benefits from having the feature_type available as well.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Unit tests
• Integration tests
• Test coverage >= 90%
• Flake8 Tests
• Mypy Tests
• Other - tested with corresponding updates in django-basin3d

Test Configuration

• Python Version: 3.9

PR Self Evaluation

• My code follows the agreed upon best practices
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests or modified existing tests that prove my fix is effective or that my feature works
• Existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in the appropriate modules
• I have performed a self-review of my own code

[vchendrix]

Looks great. This is an improvement!