Remake

[dominikandreasseitz]

Full remake of horqrux inspired by pyqtorch

[jpmoutinho]

Thanks @dominikandreasseitz! Not much to say :)

Like I mentioned in the meeting I do feel like having the (more standard) control operations explicitly defined would be a bit cleaner even if requiring a few extra lines of code. From the QC user perspective I think it is clearer to immediately read CNOT(0, 1) than it is NOT(0, 1), and also being able to access the full unitary could be useful.

But either way I personally don't mind this since I would use this through Qadence so feel free to leave that for later in case future users suggest it.

[RolandMacDoland]

Very lean and lovely work. Thanks @dominikandreasseitz. Not much to say about it. Some cosmetic comments and few for the sake of discussion. Two main points: I would avoid the ambiguous empty dict constructor {} in favour of dict() and update the docstrings.