Set Window Optimized

Some unused settings were removed and settings about calibraton board
geometry and projected grid were added.
Project Window Optimized

Projector's parent was setted and the other new widget was no longer
used.
Code Style Modified

Not important changes.
Bug Fixed and Adjustment

Use “close project” button to solve the problem that projector window
won't close after closing mainwindow.
Summary About Former Works
Set Relevent Parameters and Function Added