feat: Add additional Firestore query snippets

[kevkim-codes]

Creates a region tag to use for documentation: Docsite page: https://firebase.google.com/docs/firestore/query-data/multiple-range-fields

[snippet-bot]

Here is the summary of changes.

You are about to add 2 region tags.

• samples/snippets/src/main/java/com/example/firestore/snippets/MultipleRangeInequalityFiltersSnippets.java:125, tag firestore_query_filter_compound_multi_ineq
• samples/snippets/src/main/java/com/example/firestore/snippets/MultipleRangeInequalityFiltersSnippets.java:135, tag firestore_query_indexing_considerations

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[cindy-peng]

It looks like Kokoro sample tests failed with:

[ERROR] com.example.firestore.snippets.MultipleRangeInequalityFiltersSnippetsIT.testRangeMultipleInequalityFilter  Time elapsed: 0.107 s  <<< ERROR!
java.util.concurrent.ExecutionException: 
com.google.api.gax.rpc.FailedPreconditionException: io.grpc.StatusRuntimeException: FAILED_PRECONDITION: The query requires an index.

Not super familiar with firestore, do we need to create an index? https://cloud.google.com/firestore/docs/query-data/indexing

[kevkim-codes]

It looks like Kokoro sample tests failed with:

[ERROR] com.example.firestore.snippets.MultipleRangeInequalityFiltersSnippetsIT.testRangeMultipleInequalityFilter  Time elapsed: 0.107 s  <<< ERROR!
java.util.concurrent.ExecutionException: 
com.google.api.gax.rpc.FailedPreconditionException: io.grpc.StatusRuntimeException: FAILED_PRECONDITION: The query requires an index.

Not super familiar with firestore, do we need to create an index? https://cloud.google.com/firestore/docs/query-data/indexing

Created new indexes for the sample build! Kokoro build passes now.

[jiayou97]

Hi, this is Jia from Firestore. Thanks for making the change!

[KasiaStrz]

Hi @kevkim-codes , still missing the Datastore version with region tag: datastore_query_filter_compound_multi_ineq