* Enable agent context windows to be accurate per provider:model
* Refactor model mapping to external file
Add token count to document length instead of char-count
refernce promptWindowLimit from AIProvider in central location
* remove unused imports
* add text gen web ui LLM provider support
* update README
* README typo
* update TextWebUI display name
patch workspace<>model support for provider
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Co-authored-by: timothycarambat <rambat1010@gmail.com>