Changes

http://www.jogamp.org/bugzilla/show_bug.cgi?id=389

Mixed types in generated code are functioning now,
even though not all permutations are generated - still.

However, this patch merges the indirect object passing,
wheather it is a primitive array or an indirect NIO buffer,
incl. PointerBuffer.

This allows the usage of only one JNI functions for all combinations.

Only in case of NIODirectOnly, the simplified direct only '0'
variation is created - otherwise the parametrized '1' variant.

The junit tests proves the implementation and
almost completes the gluegen junit tests coverage
for JavaEmitter and ProcAddressEmitter.

Impact/Result:
    - Working mixed array types
    - JOGL GL2 native library shrunk around 30%
    - Simplified gluegen code
    - Almost complete gluegen junit tests

TODO: Complete permutations of array/NIO arguments,
      if desired.

++++

Misc changes:

- NativeLibrary implements DynamicLookupHelper:
    lookupFunction() -> dynamicLookupFunction()

Merge with mbien's 2ea8c93d5fd27207872b97c964e3f8af5ac850c6