cam: Rename Capture to CameraSession

Rename the Capture class to CameraSession, to prepare for multi-camera
support that will gather more camera-related operations than capture in
that class.

While at it, remove an unneeded blank line.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/cam/main.cpp

@@ -13,7 +13,7 @@
 #include <libcamera/libcamera.h>
 #include <libcamera/property_ids.h>
 
-#include "capture.h"
+#include "camera_session.h"
 #include "event_loop.h"
 #include "main.h"
 #include "options.h"
@@ -363,8 +363,8 @@ int CamApp::run()
 	}
 
 	if (options_.isSet(OptCapture)) {
-		Capture capture(camera_, config_.get(), &loop_);
-		return capture.run(options_);
+		CameraSession session(camera_, config_.get(), &loop_);
+		return session.run(options_);
 	}
 
 	if (options_.isSet(OptMonitor)) {