Add RH_P12_RN/RH_P12_RNA

[GangYunGit]

I modified those files a year ago, when I was doing my graduation project.

And I succeeded in working it properly.

so, I ask for permission to add data table for RH_P12_RN/RH_P12_RNA.

[ROBOTIS-Will]

Hi @GangYunGit
Thank you for your contributions!
I'll review this and merge for the next release :)