RFC: refactor for schemes to have individual roots and ends files

[mikkokotila]

The current system where they are all in one makes it very difficult to read and easy to make mistakes when editing. So the proposal is that we move into a system where each scheme lives in their own sub-folder of schemes folder, and has standard set of files:

• SchemeName.py
• roots.csv
• ends.csv
• exceptions.csv

[eroux]

I think it's a good idea yes! the two MST schemas we envision could be in the same folder or not

[mikkokotila]

So I think the empty space before any characters on each row (which then gets removed by the code later) can be included in this scope as well.

[eroux]

sure