[Feature] Allow to configure Git Blame options

[Zackhardtoname]

git blame -w -M is supposed to ignore whitespace and moved code changes, so you just need to reformat your code and remember to use those options when looking for who to blame (https://stackoverflow.com/a/58738939/7053488)

It'd be nice to be able to add these options.

[zielu]

Hi, nice catch. -w is already there, I need to check if there was some specific reason why I did not include -M - depending on outcome I'll add it either just as default or as configurable option.