Fix main build errors

[ti3x]

Propose changes:

• add fix for following error:

bark.cpp/bark/bark.cpp:2048:43: error: use of undeclared identifier 'encodec_verbosity_level'; did you mean 'bark_verbosity_level'?
        encodec_model_path, n_gpu_layers, encodec_verbosity_level::LOW);
                                          ^~~~~~~~~~~~~~~~~~~~~~~
                                          bark_verbosity_level
/oos/bark.cpp/bark/./bark.h:23:12: note: 'bark_verbosity_level' declared here

• add doc to convert encodec.cpp weight to ggml

[acheong08]

relocation R_X86_64_32 against .text' can not be used when making a shared object`?

[acheong08]

https://github.com/BVLC/caffe/issues/2171#issuecomment-85450358

This fixed it on Linux

[PABannier]

Hi @ti3x ! Thanks for trying it out. This should be fixed with #139 . Can you tell me if this works on your side?

[PABannier]

Closing as this has been fixed in #139 and the bug has been resolved