fix: missing tflite option set for contextnet and rnn_transducer

chore: v2.1.0

fix: tflite conversion and inference

chore: fix deps and vscode configs

Merge pull request #251 from TensorSpeech/refactor

Refactor: add support tf2.8 + update imports + update examples + add helpers

fix(readme): support tensorflow >= 2.5.1

✍️ update env util messages

Merge pull request #177 from TensorSpeech/fix/refactor

Refactor repository

✍️ update setuptools and installation instruction

Merge pull request #170 from TensorSpeech/dev/transducer

Update Transducer, Positional Encoding, Dataset