Changes

Fix VersionNumber: Non digits cut off pattern was '\D.*' and cut off digits in case leading non digits appear.

'\D.*' matches a leading non-digit and then any character.

First the string is tokenized by delim:
  "OpenGL ES GLSL ES 1.0.16" -> "OpenGL ES GLSL ES 1", "0", "16"

Enhance pattern as follows and access collected group if matching:
        // group1: \D* == leading non digits, optional
        // group2: \d* == digits
        // group3: .*  == any pending chars, optional
        final java.util.regex.Pattern nonDigitsCutOff = java.util.regex.Pattern.compile("(\\D*)(\\d*)(.*)");

Reorganized storage from atomic values to int[3] array, allowing simple pattern matching loop.

Added unit test.

VersionNumber: Remove printing Exception (was added for debugging purposes)

VersionNumber: Add API doc for string parsing

VersionNumber: API doc fix

Fix Bug 608: Push down TempJarCache.findLibrary(..) from JNILibLoaderBase.loadLibraryInternal() to NativeLibrary.findLibrary(..)

This allows using TempJarCache (if used/initialized) for native 'tool' libraries as well.
This is the case of JOAL's attempt to load the provided 'libopenal.so'

Adding com.jogamp.common.util.IntBitfield: Simple bitfield holder class using an int[] storage.

IntBitfield comes in handy to store bit states of a wide value range w/o being a memory hog an O(1) access,
e.g. keyCode -> isPressed maps etc.

IntBitfield: Add API doc; Enhance put() method, return previous value to be used more versatile and write only if value changed.