Add support for TT Llama3 text models (1B,3B,8B,70B-new)

[skhorasganiTT]

• Add support for remaining llama3 TT text models (1B,3B,8B, and new 70B) in TT backend and inference/server examples
• Add supported model check to inference scripts
• Add TG device type to TTWorker
• Remove custom Llama70b model execution code in TTModelRunner and replace with commonized forward functions
• Note: this PR relies on [Llama3-text vLLM integration] Modify Llama3 text model (new and old codebase) forward apis for vLLM compatibility tt-metal#16292

cc @cglagovichTT

[github-actions]

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