Feature request: Make adding custom providers easier via code.

Right now, I need to place a file with named something like '1700172795835.py' to the cache folder (which does not exist initially)

To make things easier, I humbly suggest:
1- add a folder in code called '/chainforge/customProviders/' for users to place custom scripts.
2- allow scripts in this folder to be named with a readable name e.g. 'myModel.py'
3- when the app is loading customProviders from cache, check this folder also
3b- if it helps, you can move to cache and add a number name at runtime
4- place an example script there (when running locally) e.g. the reverse prompt script