activated code of Projector2D
added a benchmark XYProjector vs Projector2D
First code-review iteration
fixed subpackages and added benchmark
added benchmarks and renaming
Further cleanup/renaming/moving
aded some more projectors
fixed two compilation erros due to refactoring
Added new converters and refactoring of dependencies
Merge branch 'master' into projectors

Conflicts:
	examples/src/main/java/interactive/InteractiveImageViewerExample.java
	examples/src/main/java/interactive/InteractiveOpenConnectomeRotationExample.java
	examples/src/main/java/interactive/LogoPainter.java
	examples/src/main/java/interactive/catmaid/CATMAIDRandomAccessibleInterval.java
	tests/src/test/java/tests/ImgPanel.java
	tests/src/test/java/tests/LanczosExample.java
	tests/src/test/java/tests/OpenAndDisplayAffineTransformedScreenImage.java
	ui/src/main/java/net/imglib2/ui/AbstractInteractiveViewer2D.java
	ui/src/main/java/net/imglib2/ui/AbstractInteractiveViewer3D.java
	ui/src/main/java/net/imglib2/ui/OverlayRenderer.java
	ui/src/main/java/net/imglib2/ui/ij/ImagePlusInteractiveDisplay2D.java
	ui/src/main/java/net/imglib2/ui/ij/ImagePlusInteractiveDisplay3D.java
	ui/src/main/java/net/imglib2/ui/swing/SwingInteractiveDisplay2D.java
	ui/src/main/java/net/imglib2/ui/swing/SwingInteractiveDisplay3D.java
Merge branch 'projectors' into knip
Merge branch 'master' into optimized-ops

Conflicts:
	ops/src/main/java/net/imglib2/ops/operation/imgplus/unary/ImgPlusRemove1Dims.java
	ops/src/main/java/net/imglib2/ops/operation/randomaccessibleinterval/unary/regiongrowing/AbstractRegionGrowing.java
	ops/src/main/java/net/imglib2/ops/operation/subset/views/SubsetViews.java
Merge branch 'optimized-ops' into knip

Conflicts:
	ops/src/main/java/net/imglib2/ops/operation/imgplus/unary/ImgPlusRemove1Dims.java
	ops/src/main/java/net/imglib2/ops/operation/randomaccessibleinterval/unary/regiongrowing/AbstractRegionGrowing.java
	ops/src/main/java/net/imglib2/ops/operation/subset/views/SubsetViews.java