Add steampipe_plugin_column introspection table to internal schema

[kaidaguerre]

Proposed schema for steampipe table to get qual introspection data:

steampipe_plugin_column
* plugin_name
* table_name
* name
* type
* description
* list_config::jsonb
  - operators (array[string], "=", ">", ...)
  - required ("required", "optional", "any_of")
  - cache_match ("subset", "match")
* get_config::jsonb
  - operators (array[string], "=", ">", ...)
  - required ("required", "optional", "any_of")
  - cache_match ("subset", "match")
* hydrate_name
* default_value