Contribution: Adding Falcon Models

[Ruqyai]

Is your feature request related to a problem? Please describe.

The feature request is related to contribution by adding the new pre-trained (Falcon LLM - 7b /40b) models to KerasNLP.

Describe the solution you'd like

The feature request is related to contribute by adding Falcon (7b and 40b) to pre-trained models in KerasNLP.
In 7th June, 2023 , Falcon 40B, the world’s top-ranked open-source AI model on the Hugging Face leaderboard for large language models (LLMs).
Falcon LLM models available under the Apache 2.0 software license.
More info here: https://huggingface.co/tiiuae

• Backbone Add FalconBackbone #1081
• Tokenizer Add FalconTokenizer #1099
• Presets Add FalconPresets #1100
• Preprocessor
• Tasks

"Google Cloud credits are provided for this project."

[mattdangerw]

Thank you! I think you are already working on this correct? Just assigned you.

Looking forward to this!

[Ruqyai]

Thank you! I think you are already working on this correct? Just assigned you.

Looking forward to this!

Yes I am already working.

[shivance]

@Ruqyai Please follow https://github.com/keras-team/keras-nlp/tree/master/tools/checkpoint_conversion

[Ruqyai]

To fix CLA issue, I removed the old PR.
This is the new PR
Add FalconBackbone #1081