Worked on Korlib

Worked on Korlib adding various interfaces and classes as well as
attributes.
Since using throws, the IR visitor stage for throw is commented out.
Worked on Korlib

Added FieldOffsetAttribute.
Merge pull request #27 from charsleysa/korlib

Worked on Korlib
Merge branch 'master' of https://github.com/mosa/MOSA-Project
- Minor fixes