Support for progress tracking and cancellation of multi-pass kernels

Added utility MultiPassKernelSwingWorker.java for simplified use of above from Swing.
Added related sample code.

Bugfixes

changed length/dim auxiliary parameters generation to be numbered (0, 1,
2) only for multi-dimensional arrays (this fixes some code generation
tests)

multidimensional arrays

generation stability (which was undermined by caching)

to assertEquals in order to better visualize generated code
misalignments (especially under Eclipse)

and caches are enabled

message

mistakenly pointing at OpenCL.Local and OpenCL.Constant, aimed at
parameters, rather than Kernel.Local and Kernel.Constant, aimed at
fields)

Align with latest APARAPI commits

Added support for metadata caching, FJ pool in JTP execution and minor speed-ups

Conflicts:
	com.amd.aparapi/src/java/com/amd/aparapi/internal/kernel/KernelRunner.java

Align with latest APARAPI commits

Add support for Xeon Phi

upon constructor in ByteCode's constructor (was in newInstruction()
method)

APARAPI, thus avoiding the need for re-generating them on each kernel
call (or, worst, when a new Kernel is instatiated)
- added support for finding method properties (such as method using
atomics 32, OpenCL mapping, etc.) based on full method signature, not
only name
- added support for OpenCL-mapped methods user-defined, i.e., outside of
Kernel class
- added two OpenCL-mapped methods 'hypot' in Kernel (more to come)
- added support for ForkJoinPool-based JTP execution (this avoids
creation of a high number of threads for ranges having local sizes
significantly higher than the number of system CPU cores)
- added support for skipping local barriers altogether in JTP execution,
when a local size (x * y * z) equal to 1 is detected

thrown exceptions (if any)

caches/memoizers