Add support T5 model

[codeAndxv]

Add support T5 model

At present, the T5 model can be used in main-cli in the llama.cpp, whether to add support for the T5 model in this project.

ggml-org/llama.cpp#8141

[ShenghaiWang]

Add support T5 model

At present, the T5 model can be used in main-cli in the llama.cpp, whether to add support for the T5 model in this project.

ggml-org/llama.cpp#8141

Welcome to contribute!