imagemagick: add complex text support via libraqm

This enables rendering e.g. ligatures with text. Adding `libraqmSupport`
param as that seems typical for this package.

Author: amarshall

pkgs/applications/graphics/ImageMagick/default.nix

@@ -32,6 +32,8 @@
   libpng,
   liblqr1Support ? true,
   liblqr1,
+  libraqmSupport ? true,
+  libraqm,
   librawSupport ? true,
   libraw,
   librsvgSupport ? !stdenv.hostPlatform.isMinGW,
@@ -136,6 +138,7 @@ stdenv.mkDerivation (finalAttrs: {
     ++ lib.optional ghostscriptSupport ghostscript
     ++ lib.optional liblqr1Support liblqr1
     ++ lib.optional libpngSupport libpng
+    ++ lib.optional libraqmSupport libraqm
     ++ lib.optional librawSupport libraw
     ++ lib.optional libtiffSupport libtiff
     ++ lib.optional libxml2Support libxml2