libcamera: geometry: SizeRange: Add contains()

Add a method to check if a Size can fit inside a SizeRange. When
determining if a size is containable take step values into account if
they are not set to 0.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

include/libcamera/geometry.h

@@ -92,6 +92,8 @@ public:
 	{
 	}
 
+	bool contains(const Size &size) const;
+
 	std::string toString() const;
 
 	Size min;