when changing language, recalculating Nub that already had results was breaking chained results

separated chart related classes from RemousResultsComponent file

add e2e spec

MacrorugoCompound and PAB: fix bug in variable selector index when switching from variable mode to fixed mode

VarResults: look for children variable names in parent config file (the only one that is loaded at this time)

Solveurs are now listed as dependencies when closing a calculator
Solveurs are now listed as dependencies under the calculator name ("used by")
resetting a Solveur dependency's results triggers Solveur results reset