add formatter

[cookiell546]

No description provided.

[thestinger]

@cookiell546 Please leave the .github files as is for now because we would want to change them across all repositories ourselves if we were going to switch them to 4 space tabs. Also, please use 100 as the column width rather than the default 80 which we consider too small for modern development environments. We use 100 but we make exceptions where going past it is more readable.

[cookiell546]

Done.