Speed up mutation model thanks to hybrid_property
Speed up mutation model thanks to hybrid_property

It allows use calculation of properties on server if they are already loaded, so we don't need to send additional queries to database. Nonetheless it still allows treating those properties as SQL queries since we have them as hybrid_properties. Speed up on my laptop was notable: from 40s of loading time per page to less then 0.01s

reimandlab/Visualisation-Framework-for-Genome-Mutations,reimandlab/Visualisation-Framework-for-Genome-Mutations,reimandlab/Visualisation-Framework-for-Genome-Mutations,reimandlab/ActiveDriverDB,reimandlab/Visualistion-Framework-for-Genome-Mutations,reimandlab/Visualistion-Framework-for-Genome-Mutations,reimandlab/ActiveDriverDB,reimandlab/Visualisation-Framework-for-Genome-Mutations,reimandlab/ActiveDriverDB,reimandlab/Visualistion-Framework-for-Genome-Mutations,reimandlab/Visualistion-Framework-for-Genome-Mutations,reimandlab/ActiveDriverDB,reimandlab/Visualisation-Framework-for-Genome-Mutations