Create styles to enable controls
Merge branch 'sch-oxyplot-alt'

Conflicts:
	SchemeGraphs/SchemeGraphs/Views/MainWindow.xaml
	SchemeGraphs/SchemeGraphs/Views/MainWindow.xaml.cs
Manual merged to sch-oxyplot-alt Views.
Changed integral function, so it does not draw it anymore, because it was being drawn wrong.
The scheme part is not created for the integral function to be drawn.
Updated the calculate integral part.
Updated to exclude integral boxes, because they were wrong.
Fixed color issues.
Switching to other function now shows the corresponding plots
Changed the LineSeriesModel to be part of the LineSeriesViewModel instead of its own collection.
The plots are now being shown based on which LineSeries is selected
Removed the plotting of integral rectangles because it was wrong.
Added some validation
Fixed issue in scheme, that caused a procedure return values instead of empty set
Moved calculate integral to transformer
Delete CthConsoleTest project
Added some error handling
Removed unused classes
Changed equal? to =
Should fucking work now with all features needed.