Summary
    Method to add up the left and right size as width, as well as the top and bottom size as height
    
		- Namespace
 - MahApps
.Metro .Controls  - Containing Type
 - Utils
 
Syntax
public static Size CollapseThickness(this Thickness thick)
	Parameters
| Name | Type | Description | 
|---|---|---|
| thick | Thickness | Thickness | 
Return Value
| Type | Description | 
|---|---|
| Size | Size | 
