Optional save of the dock states

Description

Implemented an additional option in the application setting to control if the state of the dock windows (position and size) should be stored in the project file.

The new setting allows to determine the default behavior for newly created projects:

and can be additionally controlled separately for every single project in the properties dock:

If this option is activated for the project, the state of the docks is saved in the project file and restored during the project load next time.

This logic was similarly implemented for the "Save Calculations" option that was already partially available - introduce a global option in the application setting for new projects and allow to control the behavior for every project separately.

Conformity

• Changelog entry
• Unit tests
• Update INSTALL
• Downport
• Fixes:

When external dependencies are removed

• Reporting to ...