Add table gcp_composer_environment Closes #637

[ParthaI]

Integration test logs

Logs

``` Add passing integration test logs here ```

Example query results

Results

``` > select name, jsonb_path_query_array(web_server_network_access_control, '$.allowedIpRanges[*].value') as allowed_ip_ranges, location, project from gcp_composer_environment where web_server_network_access_control is not null; +--------------------------------------------------------------+-----------------------+-------------+------------+ | name | allowed_ip_ranges | location | project | +--------------------------------------------------------------+-----------------------+-------------+------------+ | projects/parker-aaa/locations/us-central1/environments/test1 | ["0.0.0.0/0","::0/0"] | us-central1 | parker-aaa | +--------------------------------------------------------------+-----------------------+-------------+------------+ ```