refs #392 Added BlackGui::IPluginConfig

* BlackGui::IPluginConfig is an interface for plugin configurations
* Added plugin_xplane_config target
* Adapted IPluginManager
* Adapted CPluginManagerSimulator
* Adaptem CSettingsSimulatorComponent

src/plugins/simulator/xplane/plugin_xplane.pro

@@ -13,6 +13,7 @@ INCLUDEPATH += . $$SourceRoot/src
 
 SOURCES += *.cpp
 HEADERS += *.h
+DISTFILES += simulator_xplane.json
 
 DESTDIR = $$DestRoot/bin/plugins/simulator
 

src/plugins/simulator/xplane/simulator_xplane.json

@@ -2,5 +2,6 @@
     "identifier" : "org.swift-project.plugins.simulator.xplane",
     "name" : "X-Plane generic plugin",
     "simulator" : "xplane",
-    "description" : "Support for the X-Plane simulator via the xbus plugin."
-}
+    "description" : "Support for the X-Plane simulator via the xbus plugin.",
+    "config" : "org.swift-project.plugins.simulator.xplane.config"
+}