feat: Add support for generic (#200)

From generic will fully support:
* text
* image
* options
* pause

car workspace now has:
* Image response has now been added for amenity locations
* Pause response has now been added for out of scope amentiy locations eg find a school
* Value 0 is now handled for amenity location selection
* Entity created to handle 0 value for amenity selection

Author: Steve Green

.gitignore

@@ -5,4 +5,5 @@ temp/
 coverage
 .env
 npm-debug.log
-.jshintrc
+.jshintrc
+.DS_Store

app.js

@@ -54,26 +54,6 @@ app.post('/api/message', function (req, res) {
       return res.status(err.code || 500).json(err);
     }
 
-    // This is a fix for now, as since Assistant version 2018-07-10,
-    // output text can now be in output.generic.text
-    var output = data.output;
-    if (output.text.length === 0 && output.hasOwnProperty('generic')) {
-      var generic = output.generic;
-
-      if (Array.isArray(generic)) {
-        // Loop through generic and add all text to data.output.text.
-        // If there are multiple responses, this will add all of them
-        // to the response.
-        for(var i = 0; i < generic.length; i++) {
-          if (generic[i].hasOwnProperty('text')) {
-            data.output.text.push(generic[i].text);
-          } else if (generic[i].hasOwnProperty('title')) {
-            data.output.text.push(generic[i].title);
-          }
-        }
-      }
-    }
-
     return res.json(updateMessage(payload, data));
   });
 });