docs: Add missing godocs for OpenCV platform

Signed-off-by: deadprogram <ron@hybridgroup.com>

platforms/opencv/camera_driver.go

@@ -19,6 +19,7 @@ const (
 	Frame = "frame"
 )
 
+// CameraDriver is the Gobot Driver for the OpenCV camera
 type CameraDriver struct {
 	name     string
 	camera   capture
@@ -58,8 +59,13 @@ func NewCameraDriver(source interface{}, v ...time.Duration) *CameraDriver {
 	return c
 }
 
+// Name returns the Driver name
 func (c *CameraDriver) Name() string { return c.name }
+
+// SetName sets the Driver name
 func (c *CameraDriver) SetName(n string) { c.name = n }
+
+// Connection returns the Driver's connection
 func (c *CameraDriver) Connection() gobot.Connection { return nil }
 
 // Start initializes camera by grabbing a frame

platforms/opencv/window_driver.go

@@ -9,6 +9,7 @@ type window interface {
 	ShowImage(*cv.IplImage)
 }
 
+// WindowDriver is the Gobot Driver for the OpenCV window
 type WindowDriver struct {
 	name   string
 	window window
@@ -26,8 +27,13 @@ func NewWindowDriver() *WindowDriver {
 	}
 }
 
+// Name returns the Driver name
 func (w *WindowDriver) Name() string { return w.name }
+
+// SetName sets the Driver name
 func (w *WindowDriver) SetName(n string) { w.name = n }
+
+// Connection returns the Driver's connection
 func (w *WindowDriver) Connection() gobot.Connection { return nil }
 
 // Start starts window thread and driver