Implement the Eq trait for Option

[Rubyt0x]

The Identity implements the Eq trait:

sway/sway-lib-std/src/identity.sw

Lines 13 to 21 in 716b34f

	impl core::ops::Eq for Identity {
	fn eq(self, other: Self) -> bool {
	match (self, other) {
	(Identity::Address(address1), Identity::Address(address2)) => address1 == address2,
	(Identity::ContractId(asset1), Identity::ContractId(asset2)) => asset1 == asset2,
	_ => false,
	}
	}
	}

I would like the same thing to exist for Option so I can compare Options.

[mohammadfawaz]

Thanks @Rubyt0x. To do this, we need to write

impl<T> core::ops::Eq for Option<T> where T: Eq {
    fn eq(...) -> bool {
        ...
    }
}

which is currently blocked by #1162

[brandonsurh]

I don't believe this is blocked anymore. Will see what I can do.