Add files for Filter unit tests
Merge: Get new project structure from master
Add AccesToDummyException
Implement Filter
Implement TimeshiftFilter
Merged HistogramHooker to get GPUHelper implementation
Add convenience methods to GPUHelper
Make Surface to Frame constructor public
Implement GreyscaleFilter
Add code for  BlurFilter
Add missing shader files
Add FileNotFoundException
Merge FilterFlamingo to master
Merge branch 'master' of https://github.com/V02460/CTT.git