Issue 7 Provide ability to determine file dependencies
This is a start at an XSD dependency processor. Work left to do to upload dependencies if not found in repository. Also need to
test relative and absolute dependency paths better, and manage dependency processors in the ModelTypeImpl registry.
Merge pull request #83 from elvisisking/xsd-dependencies

Issue 7 Provide ability to determine file dependencies
Closes #80
Merge pull request #84 from jpav/master

Closes #80
Fixed bug in XSD test that wasn't being caught by Oracle's JDK, but was
in OpenJDK used by CI build server.
Merge pull request #85 from jpav/master

Fixed bug in XSD test that wasn't being caught by Oracle's JDK, but was