Add kdev4 project file, for IDE usage

.kdev4/Cardinal.kdev4

@@ -0,0 +1,50 @@
+[Filters]
+size=9
+
+[Filters][0]
+inclusive=0
+pattern=/build
+targets=2
+
+[Filters][1]
+inclusive=0
+pattern=/plugins/*
+targets=2
+
+[Filters][2]
+inclusive=1
+pattern=/plugins/Cardinal
+targets=2
+
+[Filters][3]
+inclusive=0
+pattern=/carla/data
+targets=2
+
+[Filters][4]
+inclusive=0
+pattern=/carla/source/modules/juce_*
+targets=2
+
+[Filters][5]
+inclusive=0
+pattern=/carla/source/native-plugins/external
+targets=2
+
+[Filters][6]
+inclusive=0
+pattern=/jucewrapper/build
+targets=2
+
+[Filters][7]
+inclusive=0
+pattern=/jucewrapper/JUCE
+targets=2
+
+[Filters][8]
+inclusive=0
+pattern=/lv2export
+targets=2
+
+[Project]
+VersionControlSupport=kdevgit