[FEATURE] For Enums expose a function that will return a list of all possible constants defined

[alexott]

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Problem Statement

In the terraform provider, we may need a validation logic that will check that the value is in the list of all possible constants.

Proposed Solution

For all generated enums generate a function that will return a slice with all defined values for a given type (maybe only string-based types).

Additional Context

See comment here: https://github.com/databricks/terraform-provider-databricks/pull/4051#discussion_r1799699908