* Changes to redfish-based parameters
Corrected (potentially) small scope variable to 'id'
Review to see if this is problematic
* Updated doc information with "version_added"
* Corrected 'username' in redfish_config file
- Added check to see if attribute even exists, if not, it exits.
- Then checks if attribute is already set to value we want to update
it to. If yes, then it exits and changed=False
- Otherwise updates the attribute and changed=True
* Add module redfish_command
Communicates with Out-Of-Band Controller through Redfish APIs
Sends a command to execute an action
* Wrapped all instances of result['msg'] inside to_native()
* Added more entries to Description section
* Minor fixes for PEP8 compliance
* Update the root URI to match the DMTF specification
* Display valid Categories or Commands in case invalid value given
* Updated returned values and description
