Default Argument Specs in module_utils

[exp-hc]

We are repeating the following block in all argument specs for kibana_ modules, this should be added to kibana.py in module_utils. The same applies to the other module_utils, however, their spec will differ slightly.

host=dict(type='str', required=True)
port=dict(type='int', default=9243)
username=dict(type='str', required=True)
password=dict(type='str', required=True, no_log=True)