#### SUMMARY
This feature would implement a UpdateUserName command for the Accounts category of redfish_command, to update user name. And also implement a UpdatePasswordPolicy command for the Accounts category of redfish_command to change password policy.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
redfish_command

##### ADDITIONAL INFORMATION
These 2 commands would help user to update user name or update password policy

result = {}
    module = AnsibleModule(
        argument_spec=dict(
            category=dict(required=True),
            command=dict(required=True, type='list'),
            baseuri=dict(required=True),
            username=dict(required=True),
            password=dict(required=True, no_log=True),
            id=dict(aliases=["account_id"]),
            new_username=dict(aliases=["account_username"]),
            new_password=dict(aliases=["account_password"], no_log=True),
            roleid=dict(aliases=["account_roleid"]),
            bootdevice=dict(),
            timeout=dict(type='int', default=10),
            uefi_target=dict(),