beets: chroma plugin needs chromaprint

`chromaprint` provides the `fpcalc` binary that the `chroma` plugin
calls.

pkgs/tools/audio/beets/builtin-plugins.nix

@@ -1,5 +1,6 @@
 {
   aacgain,
+  chromaprint,
   ffmpeg,
   flac,
   imagemagick,
@@ -55,6 +56,9 @@
   chroma = {
     propagatedBuildInputs = [ python3Packages.pyacoustid ];
     testPaths = [ ];
+    wrapperBins = [
+      chromaprint
+    ];
   };
   convert.wrapperBins = [ ffmpeg ];
   deezer = {

pkgs/tools/audio/beets/common.nix

@@ -16,6 +16,7 @@
 
   # plugin deps, used indirectly by the @inputs when we `import ./builtin-plugins.nix`
   aacgain,
+  chromaprint,
   essentia-extractor,
   ffmpeg,
   flac,