Add StFmsPointMaker path in includes

Explicitly include package path in StFmsPointMaker files, as discussed
in issue #26.
Add StMuDSTMaker path in includes

Explicitly include package path in StMuDSTMaker files, as discussed
in issue #26.
Add StEvent path in includes

Explicitly include package path in StEvent files, as discussed
in issue #26.
Use quote instead of bracket includes for ROOT
Use quote instead of bracket includes for ROOT

For consistency with other STAR code. Updates all affected files in
StFmsPointMaker. Related to #26.