docs: add the docs of nunchaku (#517)

* update sphinx docs

* update the doc configration

* configure doxyfile

* start building the docs

* building docs

* building docs

* update docs

* finish the installation documents

* finish the installation documents

* finish the installation documents

* start using rst

* use rst instead of md

* need to figure out how to maintain rst

* update

* make linter happy

* update

* link management

* rst is hard to handle

* fix the title-only errors

* setup the rst linter

* add the lora files

* lora added, need to be more comprehensive

* update

* update

* finished lora docs

* finished the LoRA docs

* finished the cn docs

* finished the cn docs

* finished the qencoder docs

* finished the cpu offload

* finished the offload docs

* add the attention docs

* finished the attention docs

* finished the fbcache

* update

* finished the pulid docs

* make linter happy

* make linter happy

* add kontext

* update

* add the docs for gradio demos

* add docs for test.py

* add the docs for utils.py

* make the doc better displayed

* update

* update

* add some docs

* style: make linter happy

* add docs

* update

* add caching docs

* make linter happy

* add api docs

* fix the t5 docs

* fix the t5 docs

* fix the t5 docs

* hide the private functions

* update

* fix the docs of caching utils

* update docs

* finished the docstring of nunchaku cahcing

* update packer

* revert the docs

* better docs for packer.py

* better docs for packer.py

* better docs for packer.py

* better docs for packer.py

* update

* update docs

* caching done

* caching done

* lora

* lora

* lora

* update

* python docs

* reorg docs

* add the initial version of faq

* update

* make linter happy

* reorg

* reorg

* add crossref

* make linter happy

* better docs

* make linter happy

* preliminary version of the docs done

* update

* update README

* update README

* docs done

* update README

* update docs

* not using datasets 4 for now

docs/source/python_api/nunchaku.models.pulid.utils.rst

+nunchaku.models.pulid.utils
+===========================
+
+.. automodule:: nunchaku.models.pulid.utils
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/python_api/nunchaku.models.rst

+nunchaku.models
+===============
+
+.. toctree::
+   :maxdepth: 4
+
+   nunchaku.models.transformers
+   nunchaku.models.text_encoders
+   nunchaku.models.pulid
+   nunchaku.models.safety_checker

docs/source/python_api/nunchaku.models.safety_checker.rst

+nunchaku.models.safety\_checker
+===============================
+
+.. automodule:: nunchaku.models.safety_checker
+   :members:
+   :undoc-members:
+   :show-inheritance: