Add Traces to Exploriants

[JoeAtHPI]

Adds a toggable trace view to exploriants for the permutation and the example view. The traces are like a simplified version of the Probelog in Babylonian.
Attached is an example of binary search with variants on different colors of variable a, a watch for variable a, a conditional watch and two subsequent watches for an index in the binary search.

Changes in code:

• SBExample has a variable for saving its trace size, eg all values reported during its execution
• when reporting values to watches, they are directly converted to watch values to save information like its execution order and the watch reported to, which watch values now save too for trace information purposes
• Adds a trace morph class which visualizes examples' traces
• Adds two subclasses of SBClusters which initialize the traces and displays them in a similiar grid-fashion
• Adds a new abstract class for ExploriantResultView which enables toggling between two clusters (w/ and w/o traces)
• recategorizes SBExample methods

[JoeAtHPI]

Last push adds a resizing option below the button row valid for a view