SnapSetting 成员列表

成员的完整列表，这些成员属于SnapSetting，包括所有继承而来的成员

-	closeAll	SnapSetting
-	getSnapMode:	SnapSetting
-	initWithSetting:	SnapSetting
	maxSnappedCount	SnapSetting
-	openAll	SnapSetting
-	openDefault	SnapSetting
-	setMode:bValue:	SnapSetting
	tolerance	SnapSetting