Support more language-agnostic LipSync viseme targets

[infosia]

Is there any plan to support more language-agnostic Lip-Sync viseme targets other than "a,i,u,e,o"? From the reference Oculus Lipsync Viseme Reference and Viseme MPEG-4 Standard supporting 15 viseme targets: sil, PP, FF, TH, DD, kk, CH, SS, nn, RR, aa, E, ih, oh, ou is more likely to be language agnostic for instance.