Create activity for online and offline camera swap information

CameraSwapInfoActivity is shown from CameraSwapNotification if
ModuleDetect detects that a camera module has been replaced.

By default a WebView of the support article at fairphone.com/camera-swap
is shown. In case of error, some basic offline information is displayed.

FPIIM-1467

Change-Id: I012fefedfdaad5a1a0d0f9894c42fea686c24acb
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d1a486f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,10 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+/.idea