GetPixelValueyIndex calls replaced.
Merge branch 'bug-15640-DeprecatedMitkImageApiCallsInMitkExtractSliceFilterTest'
Scalartype from float to double and created some first tests for platformproject
Restructurings in test organisation
New tests added for vnl conversion + restructuring.
Fix composition of tooltip and tracking sesnor transforms
Add support for Read()ing until eol byte (Posix only)

Still TODO: WIN32 support
Send and block until all bytes transmitted (Posix only)

Still TODO: WIN32 support
Added abstract image filter class for OpenCV images and two implemented filters (grayscale conversion, cropping).
2d image processing pipeline of USImageVideoSource uses the new image filter objects and got an additional filter which can be set to an arbitrary filter object.
Changed method signature of FilterImages in AbstractOpenCVImageFilter.
Moved basic checks for cropping from USImageVideoSource to CropOpenCVImageFilter.
Added statement to include Subdir "Commands", removed trailing whitespaces.
Implemented some tests for convert grayscale and crop filters.
Includes corrected and variable removed which is no longer needed.
Fixed problems at comparing multi channel images in tests (converting to grayscale as a workaround).
Added warnings if correcting roi.
Experimentally created mitk::Point class to see which adaptions are necessary to get SW to compile again.
Reverted one unnecessary change.
Added support for mitkPoint 2 POD conversion.
Started work on vtk 2 mitk conversions (which is really just a POD conversion).
Fixed wrong method call (f->F) + Changed greater equal to greater at checking crop region boundaries