Refactor code into module base class and add template engine to merge code

[AdeMiller]

This is based on #24 and as per my comments there creates a base class and then uses a template engine to add the base class code and a copyright header to all files. standardization.md contains a brief explanation.

So far I've only done clc_aa_policy and its tests but everything works. I've already discovered some places where the existing shared methods are out of sync and some other potential duplication of code.

     14     def __init__(self, module):
     13     def _set_clc_credentials_from_env(self):
     11     def _set_user_agent(clc):
     11     def _define_module_argument_spec():
      3     def _wait_for_requests_to_complete(self, requests_lst):
      3     def _get_servers_from_clc(self, server_list, message):
      3     def define_argument_spec():
      2     def _wait_for_requests(module, request_list):
      2     def _refresh_servers(module, servers):
      2     def _get_alert_policy_id_by_name(clc, module, alias, alert_policy_name):
      2     def _find_network_id(module, datacenter):
      2     def _find_datacenter(clc, module):
      2     def _add_alert_policy_to_server(