Resolves #83 net performance, partially

Some improvements and fixes have been made, however see #89 (closed) and #7 for the required further work. Bottleneck appears to be png compression which is slow and ineffective.

applications/reconstruct/src/main.cpp

@@ -196,9 +196,11 @@ static void run(ftl::Configurable *root) {
 		
 			// TODO(Nick) Improve sync further...
 			for (size_t i = 0; i < inputs.size(); i++) {
-				if (inputs[i].source->isReady()) inputs[i].source->grab();
+				inputs[i].source->grab();
 			}
 
+			stream->wait();
+
 			for (size_t i = 0; i < inputs.size(); i++) {
 				if (!inputs[i].source->isReady()) {
 					inputs[i].params.m_imageWidth = 0;