Replace Cosmos Db metadata query with container query

[LeeAtCfc]

What this PR does / why we need it: Run a container query rather than a metadata query if containers are specified

Which issue(s) this PR fixes: Execution of Cosmos Db account metadata queries that can result in throttling errors

Please reference the issue this PR will close: #[462]

Special notes for your reviewer:

Does this PR introduce a user-facing change?: Implementation change of existing functionality

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• [x] Code compiles correctly
• [x] Created/updated tests
• [x] Unit tests passing
• [x] End-to-end tests passing
• [ ] Extended the documentation
• [ ] Provided sample for the feature

[LeeAtCfc]

@dotnet-policy-service agree company="CFC Underwriting"

[AButcherCFC]

@adamsitnik