Implements #228 adaptive MLS and smoothing channel

Could do with a lot of improvement, but moving in right direction

components/operators/include/ftl/operators/smoothing.hpp

@@ -43,7 +43,7 @@ class SmoothChannel : public ftl::operators::Operator {
     bool apply(ftl::rgbd::Frame &in, ftl::rgbd::Frame &out, ftl::rgbd::Source *src, cudaStream_t stream) override;
 
 	private:
-	ftl::rgbd::Frame temp_[2];
+	ftl::rgbd::Frame temp_[6];
 };
 
 /**