Merge pull request #1 from cliguda/master

Saving worksheet mapping + new spreadsheet model (start)
updates in communication and LibreAlex
merging with stuff from Christian
pricing service demoable
updated workflows and main executable
beautifying pricing service
master engine cooling system asm added
Improved IM/ASM for Marine Engine Cooling System Spsht
mergin Andrea's changes
updated workflows for CAD
adding explanation parameter to SallyMenuItems
adding process instance id
Merge branch 'master' of https://github.com/KWARC/Sally
Small fix to show only file names (not whole path) in menus
with communication part
minor changes
merging changes from risav
merging Andrea's changes
theo window and theo app
changes to theo dialog