Standardize on either `collection` or `container`

[jmax01]

Standardize on either collection or container.

Example: currently both collectionName or containerName are used throughout the API for the values that are used by methods that return either CosmosContainers or CosmosSyncContainers

I would suggest standardizing on container over collection as that is terminology used in azure-cosmos.

• All current methods with collection naming should be deprecated
• All method parameters, local variables, and fields that contain collection should be updated to container
• The names of methods, method parameters, variables, and fields that refer to container names and not CosmosContainers or CosmosSyncContainer should contain the word name. Thus ReactiveCosmosTemplate.collectionCache should be ReactiveCosmosTemplate.containerNameCache.

[kushagraThapar]

Thanks for the suggestion @jmax01 We will standardize them to container throughout the SDK where breaking changes are not required. Regarding breaking changes, we can deprecate old APIs, and add new ones.

[kushagraThapar]

This has been released in spring-data-cosmosdb v2.2.3