Add support for imports from local Java classpath in ScriptEngine

This provides support for calling local (user-project-scope) Java
methods from rules. The previous support for Java methods was limited to
Java code from the global Java classpath.

Currently both cases only work when using the interpreter API, and not
from the transformation wizard.

Change-Id: I312fe9ab45a10f83a86d7ff001eda8e7ef3f60bc
1 file changed