### 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 = 'Gentoo'
    strategy_class = OpenRCStrategy
class ALTLinuxHostname(Hostname):
    platform = 'Linux'
    distribution = 'Altlinux'
    strategy_class = RedHatStrategy
class AlpineLinuxHostname(Hostname):
    platform = 'Linux'
    distribution = 'Alpine'
    strategy_class = AlpineStrategy
class OpenBSDHostname(Hostname):
    platform = 'OpenBSD'
    distribution = None
    strategy_class = OpenBSDStrategy
class SolarisHostname(Hostname):
    platform = 'SunOS'
    distribution = None
    strategy_class = SolarisStrategy
class FreeBSDHostname(Hostname):
    platform = 'FreeBSD'
    distribution = None
    strategy_class = FreeBSDStrategy
class NetBSDHostname(Hostname):
    platform = 'NetBSD'
    distribution = None
    strategy_class = FreeBSDStrategy
class NeonHostname(Hostname):