Remove requirement for string as parameter's value in configuration

Author: Jana Hozzova

src/autotuning_methodology/schemas/T4.json

@@ -58,10 +58,8 @@
                         "type": "string"
                     },
                     "configuration": {
-                        "description": "The parameter configuration tested. Keys are parameter names, values are parameter values as strings.",
-                        "type": "object",
-                        "additionalProperties": {
-                            "type": "string"
+                        "description": "The parameter configuration tested. Keys are parameter names, values are parameter values.",
+                        "type": "object"
                         }
                     },
                     "objectives": {