feat: allowing x-jsf-logic to affect field attributes

[antoniocapelo]

This PR aims to allow x-jsf-logic schema to affect properties of fields. From what I can tell, this should be achieved by taking the jsonLogicContext into account when building/mutating the fields. That's the approach I'm following on this WIP PR.

Some examples that should work:

{
  "properties": {
    "amount": {
      "title": "Total amount",
      "type": "number",
      "x-jsf-logic-computedAttrs": {
        "currency": "currency_selected"
      },
      "x-jsf-presentation": {
        "currency": "---",
        "inputType": "money"
      }
    },
    "currency": {
      "oneOf": [
        {
          "const": "AED",
          "title": "AED - United Arab Emirates Dirham"
        },
        {
          "const": "AFN",
          "title": "AFN - Afghanistani Afghani"
        }
      ],
      "title": "Currency",
      "type": "string",
      "x-jsf-presentation": {
        "inputType": "select"
      }
    }
  },
  "title": "Standard Template",
  "type": "object",
  "x-jsf-logic": {
    "computedValues": {
      "currency_selected": {
        "rule": {
          "var": "currency"
        }
      }
    }
  }
}

{
  "properties": {
    "field_a": {
      "type": "number"
    },
    "field_b": {
      "type": "number"
    }
  },
  "x-jsf-logic": {
    "computedValues": {
      "a_plus_ten": {
        "rule": {
          "+": [
            {
              "var": "field_a"
            },
            10
          ]
        }
      }
    },
    "validations": {
      "greater_than_a_plus_ten": {
        "errorMessage": "Must be greater than Field A + 10",
        "rule": {
          ">": [
            {
              "var": "field_b"
            },
            {
              "+": [
                {
                  "var": "field_a"
                },
                10
              ]
            }
          ]
        }
      }
    }
  },
  "allOf": [
    {
      "if": {
        "properties": {
          "field_a": {
            "const": 20
          }
        },
        "required": [
          "field_a"
        ]
      },
      "then": {
        "properties": {
          "field_b": {
            "x-jsf-logic-computedAttrs": {
              "title": "Must be greater than {{a_plus_ten}}."
            },
            "x-jsf-logic-validations": [
              "greater_than_a_plus_ten"
            ]
          }
        }
      }
    }
  ]
}