rename awx modules folder to collection

awx_collection/galaxy.yml.j2

@@ -0,0 +1,16 @@
+authors:
+- Wayne Witzel III (@wwitzel3)
+- Chris Meyers <cmeyers@redhat.com>
+dependencies: {}
+description: Ansible modules that interact with the AWX API.
+documentation: https://docs.ansible.com/ansible/latest/modules/list_of_web_infrastructure_modules.html#ansible-tower
+homepage: https://ansible.com
+issues: https://github.com/ansible/awx/issues
+license:
+- GPL-3.0-only
+name: {{ package_name }}
+namespace: {{ namespace_name }}
+readme: README.md
+repository: https://github.com/ansible/awx
+tags: []
+version: {{ package_version }}