Relax prefer-destructuring rules

[whymarrh]

Refs MetaMask/metamask-extension#9263
Refs MetaMask/logo#35

This PR relaxes the prefer-destructuring rule to no longer apply to arrays, object assignment, or renamed properties. That is, the following are allowed but not required:

const first = array[0]; // before
const [first] = array; // after

foo = obj.foo; // before
({ foo } = obj); // after

const bar = obj.foo; // before
const { foo: bar } = obj; // afer

[rekmarks]

LGTM!

[Gudahtt]

LGTM!