Enhancement - no-get rule and auto-fix

[ArtixZ]

As is mentioned here in the test file, we currently don't identify or auto-fix get on a non-string. This means when the non-string is a variable name, we deem it as valid.

This ticket propose that we identify and auto-fix for those use cases.

Expectations:

obj.get(5) ===> obj[5] // obj.get(5) is legal as I tested.

obj.get(foo) ===> obj[foo]

[ArtixZ]

Incoporating the bug mentioned in #1835, here is the list of examples of new enhancements should be added:

obj.get(5) ===> obj[5] // obj.get(5) is legal as I tested.

obj.get(foo) ===> obj[foo]

obj.get('firstObject') ===> obj[0]

obj.get('lastObject') ===> obj[obj.length - 1]

foo1 === foo2 ? obj.get('bar') : obj.get('baz') ===> foo1 === foo2 ? obj.bar : obj.baz

[bmish]

Great, would love to autofix additional cases that we can safely fix.