PCG Random Number Generation, Minimal Java Edition

This code provides a port to Java 8 of the C minimal implementation of one
member of the PCG family of random number generators, which are fast,
statistically excellent, and offer a number of useful features.

Full details on the original version of the library can be found at the
[PCG-Random website]. This is a port to Java 8 of the original C code that
provides a single family member and skips some useful features (such as
jump-ahead/jump-back) -- there is no current port to Java 8 of my doing
or any other that I'm aware of either the full version of the PCG C library,
or the full feature, the PCG C++ library.

Documentation and Examples

Visit [PCG-Random website] for information on how to use the C or C++ libraries,
or look at the (ported to Java 8) sample code/demos -- hopefully it should be
fairly self explanatory.

Building

A configured Netbeans project is provided. Just 'build' and 'run', the default
'Main class' is the 'pcg32_demo', with the run arguments '-r' (random seed)
and 1 (generation rounds).

The code is written in Java 8, and was tested with Oracle Java 8 JRE, in both
Windows 7 64bits and Linux Mint 17.3 64bits operative systems.

Testing

To run either of the three demos solely change in the Netbeans provided
project 'properties' the 'Main class' to the desired ported to Java 8
demo: 'pcg32-global-demo' (which uses the global rng), 'pcg32-demo' (which
uses a local generator), and pcg32x2-demo (which gangs together two generators,
showing the usefulness of creating multiple generators).

To run the demos using a fixed seed (same output every time), run the demos
with no 'Arguments' in the project 'properties' 'Run' option.

To produce different output, the demos with '-r' in the 'Arguments' in the
project 'properties' 'Run' option.

You can also pass an integer count to specify how may rounds of output you
would like.