Add nomad-catalysis plugin and app

The plugin contains a couple of schemas for catalyst samples and different catalytic tests. I also enable the heterogeneous catalysis app, which is currently diabled in the main nomad.

plugins-values.yaml

@@ -8,3 +8,8 @@ nomad:
           python_package: nomad_measurements
         parsers/nomad_measurements/xrd:
           python_package: nomad_measurements.xrd.parser
+        schemas/nomad_catalysis:
+          python_package: nomad_catalysis
+    ui:
+      apps:
+        exclude: []