Automatic deployment scripts for Covidsim/Episim web visualizer

These scripts perform post-processing tasks of data produced by the Episim simulation framework on a HPC cluster, and facilitate automated upload of the post-processed data to a webserver running the Covidsim visualizer. Authentication is based on SSH keys, and the upload itself can be triggered either via a cronjob on the webserver, or via a git hook initiated by an external CI/CD pipeline (e.g. GitLab).