GimbalControlSettings: implement default yaw lock setting

Author: robertlong13

Controls/GimbalControlSettingsForm.cs

@@ -317,8 +317,8 @@ public GimbalControlSettings()
             CameraVFOV = 30.0m; // vertical, degrees
 
             // Default boolean options
-            DefaultLockedMode = false;
             UseFOVReportedByCamera = true;
+            DefaultLockedMode = false;
         }
 
         public GimbalControlSettings(GimbalControlSettings other)

Controls/GimbalVideoControl.cs

@@ -101,6 +101,8 @@ public GimbalVideoControl()
 
             loadPreferences();
 
+            yaw_lock = preferences.DefaultLockedMode;
+
             // Register the global key handler
             Application.AddMessageFilter(this);