Add missing manifest files

manifests/drivers/aravis.xml

@@ -0,0 +1,11 @@
+<package>
+  <description brief="A vision library for genicam based cameras">
+    Aravis is a glib/gobject based library for video acquisition using Genicam
+    cameras. It currently implements the gigabit ethernet and USB3 
+    (Since Aravis 0.5.x) protocols used by industrial cameras. It also provides 
+    a basic ethernet camera simulator and a simple video viewer.
+  </description>
+  <author>GNOME Project</author>
+  <license>GPL</license>
+  <url>https://github.com/AravisProject/aravis</url>
+</package>

manifests/gui/collada_osg.xml

@@ -0,0 +1,22 @@
+<package>
+    <description brief="COLLADA - Digital Asset and FX Exchange Schema (DOM library)">
+        COLLADA defines an XML-based schema to make it easy to transport 3D
+        assets between applications - enabling diverse 3D authoring and content
+        processing tools to be combined into a production pipeline. The
+        intermediate language provides comprehensive encoding of visual scenes
+        including: geometry, shaders and effects, physics, animation,
+        kinematics, and even multiple version representations of the same
+        asset.COLLADA FX enables leading 3D authoring tools to work effectively
+        together to create shader and effects applications and assets to be
+        authored and packaged using OpenGL® Shading Language, Cg, CgFX, and
+        DirectX® FX.
+    </description>
+    <rock_maintainer>Sylvain Joyeux/[email protected]</rock_maintainer>
+    <license>MIT</license>
+    <url>https://collada.org</url>
+    <depend name="zlib" />
+    <depend name="libxml2" />
+    <depend name="libpcrecpp" />
+
+</package>
+