Implements #228 adaptive MLS and smoothing channel

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

applications/reconstruct/src/main.cpp

@@ -247,11 +247,13 @@ static void run(ftl::Configurable *root) {
 
 	bool busy = false;
 
-	// Create the source depth map filters
+	// Create the source depth map pipeline
 	auto *prefilter = ftl::config::create<ftl::operators::Graph>(root, "pre_filters");
 	prefilter->append<ftl::operators::ColourChannels>("colour");
 	prefilter->append<ftl::operators::HFSmoother>("hfnoise");
+	// Smooth normals
 	prefilter->append<ftl::operators::SimpleMLS>("mls");
+	// Alignment
 
 	//auto *postfilter = ftl::config::create<ftl::Filters>(root, "post_filters");
 	//postfilter->create<ftl::filters::DepthSmoother>("hfnoise");