[quantization] Add QuantLlamaModel

[stamalakhov]

This PR adds wrapper for LlamaModel and adds tests for it

`./ccex test -k quantization.wrapq.wrappers.llama.test_quant_model`

RUN unit tests with -k quantization.wrapq.wrappers.llama.test_quant_model ...

Required transformers not installed — skipping GELUTanh tests
test_forward_diff (quantization.wrapq.wrappers.llama.test_quant_model.TestQuantLlamaModel) ... ok
test_mode_transitions (quantization.wrapq.wrappers.llama.test_quant_model.TestQuantLlamaModel) ... ok

----------------------------------------------------------------------
Ran 2 tests in 0.156s

OK

Draft: #495

TICO-DCO-1.0-Signed-off-by: s.malakhov s.malakhov@partner.samsung.com

[mhs4670go]

LGTM