ft: JsonSchema components are now ImmutableJS compliant (#5952)

bug: JsonSchema components should validate schema properties exists
  - schema
  - type
  - format
  - enum
bug: fix a debounce error in JsonSchema_string if value is null
ft: new simplified JsonSchemaArrayItemText component
test: use immutableJS for `json-schema-form` test
test: add dev scripts to run `cypress open`
test: new cypress `schema-form` tests

src/core/plugins/oas3/wrap-components/json-schema-string.jsx

@@ -9,10 +9,11 @@ export default OAS3ComponentWrapFactory(({ Ori, ...props }) => {
     onChange
   } = props
 
-  const { type, format } = schema
+  const format = schema && schema.get ? schema.get("format") : null
+  const type = schema && schema.get ? schema.get("type") : null
   const Input = getComponent("Input")
 
-  if(type === "string" && (format === "binary" || format === "base64")) {
+  if(type && type === "string" && (format && (format === "binary" || format === "base64"))) {
     return <Input type="file"
                    className={ errors.length ? "invalid" : ""}
                    title={ errors.length ? errors : ""}

src/core/plugins/view/root-injects.jsx

@@ -100,7 +100,6 @@ const wrapRender = (component) => {
   return target
 }
 
-
 export const getComponent = (getSystem, getStore, getComponents, componentName, container, config = {}) => {
 
   if(typeof componentName !== "string")