Fixed issues with proc returning f(x) values in the wrong order.
Added oxyplot to the solution and written a couple of tests that shows how to use it.
Added Model for Oxyplot.
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Added several graphs
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Clear added
Removed the zooming on axises.
Added functionality to change between log and linear axis.
Changed gui and added name field for functions.
Added usage for derivative.
You can now plot multi functions and their derivatives.
Added enables/disables controls is no lineseries exist.
Fixed a bug where Graphs are not updated, but created again.
Merge branch 'sch-oxyplot-alt'

Conflicts:
	SchemeGraphs/SchemeGraphs/Graph/Implementation/LineSeriesTransformer.cs
	SchemeGraphs/SchemeGraphs/Model/LineSeriesModel.cs
	SchemeGraphs/SchemeGraphs/ViewModels/LineSeriesViewModel.cs
	SchemeGraphs/SchemeGraphs/Views/MainWindow.xaml.cs