split dualplot -> axis

rename copy function;
new function to copy full main vector VS/VC

ci seems to work
13 TODO's left

18 TODO's left

- use "class" keyword
- move constructor to .cpp
- move calculator from expr.cpp to its own calc.cpp
- regroup CSpec and CCurve with CZentry in zentry.h

starting to respect fin->ProtectedSpecs.contains( j );
still 22 TODO's

very much TODO: many methods disabled!

libraries have their CHANGELOGs