[Modular] mellon doc etc (#13051)
* add metadata field to input/output param
* refactor mellonparam: move the template outside, add metaclass, define some generic template for custom node
* add from_custom_block
* style
* up up fix
* add mellon guide
* add to toctree
* style
* add mellon_types
* style
* mellon_type -> inpnt_types + output_types
* update doc
* add quant info to components manager
* fix more
* up up
* fix components manager
* update custom block guide
* update
* style
* add a warn for mellon and add new guides to overview
* Apply suggestions from code review
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
* Update docs/source/en/modular_diffusers/mellon.md
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
* more update on custom block guide
* Update docs/source/en/modular_diffusers/mellon.md
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
* a few mamual
* apply suggestion: turn into bullets
* support define mellon meta with MellonParam directly, and update doc
* add the video
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Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
Co-authored-by: yiyi@huggingface.co <yiyi@ip-26-0-160-103.ec2.internal>
