Add UI for the frei0r_transparency effect

data/effects/frei0r/CMakeLists.txt

@@ -79,6 +79,7 @@ frei0r_threelay0r.xml
 frei0r_threshold0r.xml
 frei0r_timeout.xml
 frei0r_tint0r.xml
+frei0r_transparency.xml
 frei0r_twolay0r.xml
 frei0r_vectorscope.xml
 frei0r_vertigo.xml

data/effects/frei0r/frei0r_transparency.xml

+<!DOCTYPE kpartgui>
+<effect tag="frei0r.transparency" id="frei0r.transparency" type="video" unique="1">
+	<name context="Transparency">Transparency</name>
+	<description>Tunes the alpha channel.</description>
+	<author>Richard Spindler</author>
+    <parameter type="animated" name="0" default="1" min="0" max="1" decimals="2">
+            <name>Transparency</name>
+        </parameter>
+</effect>