update project template
- let cmake set useful rpath on installation of binaries
- fix(project-template): remove extra rpath from DOOCS imported targets
- fix(project-template): cmake dev warning in FindDOOCS
- fix(project-template): imported targets for set_csa
- chore(project-template): warn about add_dependency use
- fix(project-template): for cmake 3.16 (Ubuntu 20.04)
- Increased required version of EPICS-IOC- and EPICS7-IOC-Adapter (#32)