refactor items to include demo elements

Author: satra

DemoProtocol/DemoProtocol_schema

@@ -57,6 +57,7 @@
         ],
 		"shuffle": false,
 		"allow": [
+			"reproschema:AutoAdvance",
 			"reproschema:AllowExport"
 		]
 	}

activities/Activity3/Activity3_schema

@@ -57,9 +57,17 @@
                   "allow": [
                     "reproschema:Skipped"
                 ]
+                },
+                {"isAbout": "items/float_with_units_item",
+                "variableName": "float_unit_item",
+                "isVis": true,
+                  "allow": [
+                    "reproschema:Skipped"
+                ]
                 }
         ],
         "order": [
+            "items/float_with_units_item",
             "items/integer_item",
             "items/float_item",
             "items/text_item",

activities/Activity3/items/float_with_units_item

@@ -0,0 +1,26 @@
+{
+    "@context": "https://raw.githubusercontent.com/ReproNim/reproschema/1.0.0/contexts/reproschema",
+    "@type": "reproschema:Field",
+    "@id": "float_with_units_item",
+    "prefLabel": "float unit item",
+    "description": "This is a float item with a unit.",
+    "schemaVersion": "1.0.0",
+    "version": "0.0.1",
+    "question": "This is an item where the user can input a float like 3.1415926... and a unit",
+    "ui": {
+        "inputType": "float"
+    },
+    "responseOptions": {
+        "valueType": "xsd:float",
+        "unitOptions": [
+            {
+                "prefLabel": {"en": "Celsius"},
+                "value": "C"
+            },
+            {
+                "prefLabel": {"en": "Fahrenheit"},
+                "value": "F"
+            }
+        ]
+    }
+}

activities/Activity3/items/text_item

@@ -6,7 +6,7 @@
     "description": "This is a text item.",
     "schemaVersion": "1.0.0",
     "version": "0.0.1",
-    "question": "This is an item where the user can input some text with a max length of 300.",
+    "question": "This is an item where the user can input some text.",
     "ui": {
         "inputType": "text"
     },

activities/selectActivity/items/select_item

@@ -27,6 +27,10 @@
             {
                 "name": "Response option 3",
                 "value": 2
+            },
+            {
+                "name": "Other",
+                "value": "Other"
             }
         ]
     }

activities/selectActivity/items/select_item_multiple_choice

@@ -27,6 +27,10 @@
             {
                 "name": "Response option 3",
                 "value": 2
+            },
+            {
+                "name": "Other",
+                "value": "Other"
             }
         ]
     }