Not all of us are superhumans like Erik, so I propose to create simple classes PublicKey and Signature, for the rest of us, poor human beings 😂

Really, I still have many difficulties in understanding the usage of ECPoint, ECCurve, ECField, etc, just to handle a simple publickey. I often forget too which is the correct size of a signature for Neo secp256r1 (64 bytes, right?).
I think that, in the end, these classes are useful and necessary to represent the basic concepts of PublicKey and Signature on Neo. Signature is just a 64-bytearray today (because we are using secp256r1), but who knows tomorrow? Same for PublicKey, it's hard for me to simply handle it as a bytearray in compressed (33-bytes) or uncompressed format (which I don't know the size now...)

I think that this simplifies many things, and makes it much easier to handle this two fundamental concepts during the whole project.