[Kotlin] New reserved words

[crazyk2]

Contract

{
  "openapi": "3.0.0",
  "info": {
    "title": "Test Api",
    "version": "3.0.0"
  },
  "paths": {
    "/test/requestBodyRefTest": {
      "get": {
        "summary": "Test method",
        "responses": {
          "200": {
            "description": "Success",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Example"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "Example": {
        "type": "object",
        "properties": {
          "state": {
            "enum": [
              "Actual",
              "Expect"
            ],
            "type": "string"
          }
        }
      }
    }
  }
}

actual and expect are reserved words
Generated result is

enum class State(val value: kotlin.String){
        actual("Actual"),
        expected("Expected")
    }

This code doesn't compile

[HugoMario]

these PR:
#464
#488

were added to handled this. thanks again @crazyk2 for reporting this and work on it!!