Feature request: read JSON into augmented variables

[xtovski]

Feature description:

1. Instead of reading JSON property one-by-one, just read JSON into augmented variables, dot-separated path.
2. Provide additional __type variable that will allow to determine original JSON property variable type: string, number, boolean, json.

Example:

1. Original JSON: {a:"1",b:1,c:{a:2,b:"2",d:true}}
2. Output variables:

a = 1
a__type = string
b = 1
b__type = number
c = {a:2,b:"2",d:true}
c__type = json
c.a = 2
c.a__type = number
c.b = 2
c.b__type = string
c.d = true
c.d__type = booelan