McuSupport: Let application wizard generate a .qmlproject in addition

It sets the qtForMCUs flag to true, so the the QmlDesigner plugin
can filter out the unsupported imports and properties.

Change-Id: Ic5728ff334b410742518c564d88d72957d6c979d
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/mcusupport/mcusupport.qrc

@@ -7,6 +7,7 @@
         <file>wizards/icon.png</file>
         <file>wizards/icon@2x.png</file>
         <file>wizards/application/CMakeLists.txt</file>
+        <file>wizards/application/project.qmlproject.tpl</file>
         <file>wizards/application/main.qml.tpl</file>
         <file>wizards/application/wizard.json</file>
     </qresource>

src/plugins/mcusupport/wizards/application/project.qmlproject.tpl

@@ -0,0 +1,19 @@
+/* File generated by Qt Creator */
+
+import QmlProject 1.1
+
+Project {
+    mainFile: "%{MainQmlFile}"
+    qtForMCUs: true
+
+    /* Include .qml, .js, and image files from current directory and subdirectories */
+    QmlFiles {
+        directory: "."
+    }
+    JavaScriptFiles {
+        directory: "."
+    }
+    ImageFiles {
+        directory: "."
+    }
+}

src/plugins/mcusupport/wizards/application/wizard.json

@@ -47,6 +47,11 @@
                     "source": "CMakeLists.txt",
                     "openAsProject": true
                 },
+                {
+                    "source": "project.qmlproject.tpl",
+                    "target": "%{ProjectDirectory}/%{ProjectName}.qmlproject",
+                    "openInEditor": false
+                },
                 {
                     "source": "main.qml.tpl",
                     "target": "%{ProjectDirectory}/%{MainQmlFile}",