bitbake: toaster: add 'nobuild' option to Toaster

Add a 'nobuild' option for starting Toaster without the project
and hosted builds support. This allows a Toaster host to provide
local build statistics without opening the host to external users
building projects.

[YOCTO #12315]

(Bitbake rev: 2d14d6004b6add5ce07295fff1144ade2e54e1c9)

Signed-off-by: David Reyna <David.Reyna@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/toastergui/templates/base.html

@@ -110,6 +110,7 @@
                 All builds
               </a>
               </li>
+              {% if project_enable %}
               <li id="navbar-all-projects"
               {% if request.resolver_match.url_name == 'all-projects'  %}
               class="active"
@@ -119,6 +120,7 @@
                 All projects
               </a>
               </li>
+              {% endif %}
             {% endif %}
               <li id="navbar-docs">
               <a target="_blank" href="http://www.yoctoproject.org/docs/latest/toaster-manual/toaster-manual.html">
@@ -127,7 +129,9 @@
               </a>
               </li>
             </ul>
+            {% if project_enable %}
             <a class="btn btn-default navbar-btn navbar-right" id="new-project-button" href="{% url 'newproject' %}">New project</a>
+            {% endif %}
           </div>
       </div>
     </nav>