Refactor instrument items (!606) · Merge requests · mlz / BornAgain · GitLab

m.puchner requested to merge rfInstrumentItem2 into main Jan 21, 2022

Various refactorings towards SessionItem-free InstrumentItems

simplify signaling
reduce SessionItem usage
introduce Descriptors for SessionItem-free value access
simplify Instrument editors (will be continued)
reduce SessionItem usage in ParameterTree (will be continued)
rm obsolete code