Add code for a ‘new project’ button to project list navigation.

This is currently disabled though (value in route/index.js is
commented out) as it is not possible at the moment to create
new projects fully from scratch from the frontend. See comment
on previous commit.

NB: projects may be created fully from scratch by making an API
request with a suitable YAML / JSON configuration file, thusly:

curl -vs "https://[hostname]/api/project" -X POST \
    -H "Content-Type: application/yaml"
    --data-binary @/path/to/configuration.yaml

lib/www/client/source/src/router/index.js

@@ -16,7 +16,9 @@ import Log from '../views/Log.vue'
 import QC from '../views/QC.vue'
 import Graphs from '../views/Graphs.vue'
 import Map from '../views/Map.vue'
+import ProjectSettings from '../views/ProjectSettings.vue'
 import DougalAppBarExtensionProject from '../components/app-bar-extension-project'
+import DougalAppBarExtensionProjectList from '../components/app-bar-extension-project-list'
 
 Vue.use(VueRouter)
 
@@ -80,7 +82,10 @@ Vue.use(VueRouter)
     meta: {
       breadcrumbs: [
         { text: "Projects", href: "/projects", disabled: true }
-      ]
+      ],
+      appBarExtension: {
+        // component: DougalAppBarExtensionProjectList
+      }
     }
   },
   {
@@ -168,6 +173,11 @@ Vue.use(VueRouter)
         path: "map",
         name: "map",
         component: Map
+      },
+      {
+        path: "configuration",
+        name: "configuration",
+        component: ProjectSettings
       }
     ]
   }