Add kolourpaint to the compilation.

It requires qimageblitz for Qt5.
I found a working version at https://github.com/mylxiaoyi/qimageblitz,
is that the correct one to use?

CCMAIL: kollix@aon.at

custom-qt5-libs-build-include

@@ -3,6 +3,12 @@
 # So you only need to include this file if you compile your own Qt5,
 # to avoid mixing your own Qt with the distro's Qt.
 
+# For kolourpaint
+
+module qimageblitz
+  repository https://github.com/mylxiaoyi/qimageblitz.git
+end module
+
 # For okular
 
 module poppler

kf5-applications-build-include

@@ -23,7 +23,7 @@ end module-set
 
 module-set kdegraphics
     repository kde-projects
-    use-modules gwenview okular spectacle
+    use-modules gwenview okular spectacle kolourpaint
 end module-set
 
 module-set kdevelop-kf5