Added FCSFile loader - collection of FCS files

There's probably a better way to do this, like use lambdaj
()https://code.google.com/p/lambdaj/wiki/Lambdaj24ReleaseNotes, but I
didnt want to take an external dependency for this small project for
SCRI.

These changes add FCSFileLoader, essentially a collection of FCS files
that can query the collection. O how I wish Java had linq :(. I also
added the Java7Predicate interface which is similar to the Predicate
class in Java 8, which SCRI doesn't have installed.

Still need to add UTs :(.