Mixed tabs and spaces used in headers

[slowriot]

There's currently a mix of tabs and spaces used for indentation in the headers (sometimes both within a single function or line). It mostly looks alright if you have your tabs set to render as four spaces, but with any other setting the result is a mess.

Unfortunately it looks like it's about 50/50 tabs vs spaces across the board, so a fairly large change will be required to make it entirely consistent.

[spnda]

Yes, I know, since I switched about half way through development cause I thought I would slowly convert everything cause I'd be touching everything at some point which would avoid having a massive commit changing everything at once. I think this problem is actually even worse in the .cpp source files. It's something I've been meaning to fix using a formatting file such as .clang-format or whatever, but I never managed to decide on something that I liked and that didn't cause the entire project to be re-formatted so I've always just left it be.

I guess maybe now is the time to have a formatter convert all spaces to tabs in the entire project and commit it all at once, and then maybe re-think about having stricter formatting in the entire project so that any future contributions by people who might use different formatting standards don't cause issues like this to re-appear.