feature:completed bpe and base#64

Arpitsh7 wants to merge 9 commits intoAOSSIE-Org:mainAOSSIE-Org/OpenVerifiableLLM:mainfrom

Arpitsh7:feature/complete_bpebaseArpitsh7/OpenVerifiableLLM:feature/complete_bpebaseCopy head branch name to clipboard