* Added new vmware module for creating DRS VM-HOST rules Host groups in a given cluster
* Fixing punctuation in lib/ansible/modules/cloud/vmware/vmware_vm_host_drs_rule.py
* Added better Docstring
* Better messaging and documentation. Removed unused lib
* Added operation to determine create or update msg
* Fixed class params to only take module. This is less error prone
* Bugfix, undefined names
