changes to project tab and Staff roll, add employee ...

Major changes
- Project tab matching Wireframe (action listeners added, but no
implementation yet since static data with dummy dao and service
classes).
- Search filter for project name (use column header)
- Staff Roll (maintain employee) tab matching wireframe (along with all
service and dummy dao classes, static daya. so only action listened)
- New employee addition form with iinput validation as specified in
Alfred's design document (only outstanding the 10 digt max for mobile
number, currently 8 digit)