Add OR and AND operators

[iserranos]

There are already arithmetic operators (+-*/) in the extended version, so I think the next logical step would be to add the OR (|) and AND (&) operators.

For example:

{"a": "a"}
{"b": "b"}

"$.c | $.b" will return "b"
"$.a & $.b" will return "ab"

I hope that these examples have been understood to work. I think it is a basic functionality for the extended version that could enhance its use much more.

[michaelmior]

@iserranos I don't understand what you're proposing. Your first sentence seemed like you wanted logical AND/OR, but your second example shows string concatenation. Could you clarify?