URI parser operator

[jsirianni]

Porting the URI operator from Stanza. The goal of this operator is to take an absolute URI, relative URI, or query string and return the parsed result.

relative path before

/about-us?app=prod&user=james&app=stage

relative path after

"path": "/about-us",
"query": {
      "app": [
        "prod",
        "stage"
      ],
      "user": [
        "james"
      ]
    },

Initial Stanza implementation has more examples observIQ/stanza#244