Add Hiro holding a CPP book

[uwufemboy]

[Kholodets]

this doesn't quite follow the naming convention, also, im not sure if this should go in this repo since hiro is holding the book? i dont really care but theres been discourse about it before, so could you weigh in @cat-milk

[cat-milk]

I think I might have to turn it down on technicality. I'm pretty sure there is an Anime Boys Holding programming books repo out there somewhere where this probably fits