[WIP] Exclude specific folders

[codeluggage]

WIP

I built this for myself and it seems to work well.

Add the folders you'd like to exclude to https://github.com/larslockefeer/obsidian-plugin-todo/pull/59/files#diff-4b2f562f1ae44bb1b913ea4d6eb9c14ab6b57358759c4ac5e5a90f5da1e41570R8.

Remaining steps

• Expose a new (array?) setting for specifying which folders to exclude
• Read folders to exclude from user setting
• Consider exposing a regex, not just a folder?
• Double check prettier formatting, as more of the file changed when I auto formatted
• Consider merging with work in Add command to exclude notes #20 - there were too many changes, and it had conflicts, so I made this little change instead

[mikevalstar]

Looking forward to using this when it's done