[Community Pipelines] EDICT pipeline implementation (#3153)
* EDICT pipeline initial commit
- Starting point taking from https://github.com/Joqsan/edict-diffusion
* refactor __init__() method
* minor refactoring
* refactor scheduler code
- remove scheduler and move its methods to the EDICTPipeline class
* make CFG optional
- refactor encode_prompt().
- include optional generator for sampling with vae.
- minor variable renaming
* add EDICT pipeline description to README.md
* replace preprocess() with VaeImageProcessor
* run make style and make quality commands
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Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
