Creating new collection configurations: sace_emgcsea_emgfrtx_emgdemF and their respective compose files
follows work on pvs_starter in bringing templates up to date - EMG + VHR18 configurations can be created out of the box (except for fullresolution cache in vhr18, but that is non-standard), DEM mapcache & registrar need to be still copied from current config and renamed accordingly because of customizations
moves env/.env to config//.env
shibboleth access rules templating - uses just 2 env vars in shibauth
update of client configs containing polygon labels