Resolve "draft for heterogeneous catalysis app"

Closes #1592 (closed)

Additions to results.py and to gui files to prepare a new search app for Heterogeneous Catalysis.

The schemas to generate the relevant entries are seperate in a plugin published here: https://github.com/schumannj/nomad-schema-plugin-fhi-catalysis

I attach a datafile for the Activity Test entry, from which the reactivity quantities such as products/names are taken. MoVOx_C2_performance_cleared_NaN.xlsx