Implement SuperHOT/interpolated RoPE support

[Philpax]

Another llama.cpp feature that seems to have shrunk the paper-to-implementation pipeline to less than one week!

This allows for a much longer context (assuming you have the (V)RAM for it)

• ggerganov/llama.cpp#1965
• ggerganov/llama.cpp#2019
• ggerganov/llama.cpp#2054

We can probably close out #77 if this is done.

[Lukas Kreussel]

To do this we only need a new rope_scaling model parameter. Or am i missing something?