YinBuilder changes to resolve import references, and other fixes.

YinBuilder changes to resolve import references, and other fixes.

Removed maven-dependency-plugin yangtools references from core plugin,
should all be yangparser plugin now.
Fixed more symbol search scenarios where the source has a prefix and the
target does not.
Added preliminary interface to "new" parser that returns API module, not
DOM Module.
Upgraded artifact version references from Beryllium to latest SNAPSHOT.
Added code in YinBuilder to resolve import references from IndexManager.
Moved all groupid, artifactid, and version references out of Java code
into pom.xml, so release scripts will only have to operate on the
pom.xml file, even if in a custom way.

Change-Id: I3099eae4c84e088a4616c0e9fa216c208d569b57
Signed-off-by: David M. Karr <davidmichaelkarr@gmail.com>