### Summary

Add RedOS support for hostname module plugin

### Issue Type

Feature Idea

### Component Name

hostname

### Additional Information

Just add class of redos for hostname
```
class RedosHostname(Hostname):
    platform = 'Linux'
    distribution = 'RED'
    strategy_class = SystemdStrategy
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
platform = 'Linux'
    distribution = 'Scientific'
    strategy_class = RedHatStrategy
class OracleLinuxHostname(Hostname):
    platform = 'Linux'
    distribution = 'Oracle'
    strategy_class = RedHatStrategy
class VirtuozzoLinuxHostname(Hostname):
    platform = 'Linux'
    distribution = 'Virtuozzo'
    strategy_class = RedHatStrategy
class AmazonLinuxHostname(Hostname):
    platform = 'Linux'
    distribution = 'Amazon'
    strategy_class = RedHatStrategy
class DebianHostname(Hostname):
    platform = 'Linux'
    distribution = 'Debian'
    strategy_class = FileStrategy
class KylinHostname(Hostname):
    platform = 'Linux'
    distribution = 'Kylin'
    strategy_class = FileStrategy
class CumulusHostname(Hostname):
    platform = 'Linux'
    distribution = 'Cumulus-linux'
    strategy_class = FileStrategy
class KaliHostname(Hostname):