First steps into WPF
Added basic geometry classes for room model
 and a first unit test for those classes
Added geometry methods for calculating the distance between points and lines, angles between lines and reflection points for the primary reflections
Separated geometry methods from Line class, corrected angle calculation and reflection point search
Added wall class and room class for constructor. Almost ready to start UI coding.
Added Sound class with I/O from WAV files, adding sounds to each other and changing volume
Now actually available to simulate direct sound and primary reflections in simple premises. First step towards victory!
merging from preliminary
Still merging with preliminary. Room class, sound class, operations for calculating direct sound and primary reflections added.