Python: Naming updates (#12233)

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This pull request introduces several updates across multiple files to
standardize naming conventions, improve consistency in method calls, and
modernize data model definitions. The primary changes include renaming
key classes and methods, replacing deprecated fields with updated ones,
and ensuring uniformity in collection management operations.

* Replaced `VectorStoreRecordDataField`, `VectorStoreRecordKeyField`,
and `VectorStoreRecordVectorField` with `VectorStoreDataField`,
`VectorStoreKeyField`, and `VectorStoreVectorField` respectively across
all relevant files.
[[1]](diffhunk://#diff-df5224582cd487ed94306045bd09dcd32ccbd9b3f82a63184d037ebe02d34b17R16-R19)
[[2]](diffhunk://#diff-bff31c838fdfdb680d4dbdd3a24764dfd8a316b89b7d2ea466234edb98b68e9dL10-L18)
[[3]](diffhunk://#diff-af84e00363a79d8bd2f3b72976ecc95c0744fcdf89930ac9b058bfd27b27b83eL18-R18)
[[4]](diffhunk://#diff-c7a1b7cdeb95d9cdf398adc0cead91e30fcee1c6abff046f2933f0ac361d3982L30-R36)
[[5]](diffhunk://#diff-4c45e261749985abb60b9bd147b2bd2cb91fdfda869190da1f56c89032667eefL11-R14)
* Updated data models in `semantic_caching.py`,
`store_chat_history_in_cosmosdb.py`, and other files to use the new
field types for consistency.
[[1]](diffhunk://#diff-df5224582cd487ed94306045bd09dcd32ccbd9b3f82a63184d037ebe02d34b17L35-R37)
[[2]](diffhunk://#diff-bff31c838fdfdb680d4dbdd3a24764dfd8a316b89b7d2ea466234edb98b68e9dL42-R44)
[[3]](diffhunk://#diff-af84e00363a79d8bd2f3b72976ecc95c0744fcdf89930ac9b058bfd27b27b83eL63-R80)

* Renamed `create_collection_if_not_exists` to
`ensure_collection_exists` and `delete_collection` to
`ensure_collection_deleted` for clarity and consistency.
[[1]](diffhunk://#diff-df5224582cd487ed94306045bd09dcd32ccbd9b3f82a63184d037ebe02d34b17L68-R68)
[[2]](diffhunk://#diff-bff31c838fdfdb680d4dbdd3a24764dfd8a316b89b7d2ea466234edb98b68e9dL194-R194)
[[3]](diffhunk://#diff-3ad17b6faefe0a6ac2fff5b863169e5aac7ab99c49d4f376ba46f2d0d181b642L67-R67)
* Updated method calls in various files to reflect these changes.
[[1]](diffhunk://#diff-df5224582cd487ed94306045bd09dcd32ccbd9b3f82a63184d037ebe02d34b17L89-R89)
[[2]](diffhunk://#diff-c7a1b7cdeb95d9cdf398adc0cead91e30fcee1c6abff046f2933f0ac361d3982L150-R149)

* Renamed `AzureCosmosDBNoSQLStore` to `CosmosNoSqlStore` and
`AzureCosmosDBNoSQLCollection` to `CosmosNoSqlCollection`. Similar
updates were made to MongoDB-related classes.
[[1]](diffhunk://#diff-bff31c838fdfdb680d4dbdd3a24764dfd8a316b89b7d2ea466234edb98b68e9dL178-R178)
[[2]](diffhunk://#diff-c7a1b7cdeb95d9cdf398adc0cead91e30fcee1c6abff046f2933f0ac361d3982L16-R18)

* Replaced `data_model_type` with `record_type` in collection
initialization across multiple files for uniformity.
[[1]](diffhunk://#diff-df5224582cd487ed94306045bd09dcd32ccbd9b3f82a63184d037ebe02d34b17L53-R53)
[[2]](diffhunk://#diff-bff31c838fdfdb680d4dbdd3a24764dfd8a316b89b7d2ea466234edb98b68e9dL67-R69)
[[3]](diffhunk://#diff-c7a1b7cdeb95d9cdf398adc0cead91e30fcee1c6abff046f2933f0ac361d3982L99-R123)

* Consolidated imports for improved readability and maintainability.
[[1]](diffhunk://#diff-df5224582cd487ed94306045bd09dcd32ccbd9b3f82a63184d037ebe02d34b17R16-R19)
[[2]](diffhunk://#diff-af84e00363a79d8bd2f3b72976ecc95c0744fcdf89930ac9b058bfd27b27b83eL18-R18)
* Adjusted default values and annotations in data models to align with
the updated field types.
[[1]](diffhunk://#diff-4c45e261749985abb60b9bd147b2bd2cb91fdfda869190da1f56c89032667eefL47-R58)
[[2]](diffhunk://#diff-4c45e261749985abb60b9bd147b2bd2cb91fdfda869190da1f56c89032667eefL72-R71)

These changes collectively enhance the maintainability and readability
of the codebase while ensuring alignment with modern conventions.

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Closes: #11938

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Author: eavanvalkenburg