parameterize gridCellSize and gridCellNumber
the default grid is of 10*10 cells with cell size 100
add id  'game board' to container and also id 'grid'
Merge branch 'yiweili' of https://github.com/yutongp/RaiseMeUp into ypei
remove top threejs info
Merge branch 'xinbweng' of https://github.com/yutongp/RaiseMeUp into ypei
Fetch playerName and roomNumber