support && and || as logical operators

[Bernhard Weichel]

as https://extendsclass.com/jsonpath-tester.html supports && and || operators, it would be great if JsonPath-PHP could do the same.

see #37.

[Alessio Linares]

So I was checking the code to see how simple would it be to do this. Turns out it was hyper simple. Can you double check if the PR #45 looks like what you meant?

Cheers

[Alessio Linares]

I just published version 1.2 with this changes