Consistently default operator Rhs/RHS to Self
Consistently default operator Rhs/RHS to Self

Operator traits seem to be inconsistent regarding the right hand side
generic. Most default Rhs/RHS to Self, but a few omit this. This patch
modifies them all to default to Self. This should not have any backwards
compatibility issues because we are only enabling code that previously
wouldn't compile.

aidancully/rust,graydon/rust,graydon/rust,GBGamer/rust,GBGamer/rust,graydon/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,GBGamer/rust,graydon/rust,GBGamer/rust,GBGamer/rust