Copy NeogitStatus diffs without +/- characters at the beginning of a line

[nounder]

Is your feature request related to a problem? Please describe.
I'd like to copy part of diffs shown in NeogitStatus without the first character that consists of - or + using standard yank command.

Describe the solution you'd like
Yanking diff lines does copy only part of a files, without diffs decorations, ie. + and - characters

Describe alternatives you've considered
Removing diff decorations altogether. Not sure if it's possible without changing plugin's source code.

[CKolkey]

Sadly this one is actually pretty tough. We use the leading + or - to apply the highlights, so removing them isn't really that straightforward.