Enable splash screen

I announced this change a while back. My reasoning:
1. I won't be maintaining a Unity subscription and can't remove the splash in future releases. Best to get this out of the way before 1.0 or users might wonder why 1.1 suddenly has a splash when 1.0 didn't.
2. I also feel it's important to normalise splash before 1.0. If my builds have the splash then everyone is equal. Future stewards or forks of DFU should not feel compelled to pay for a Unity sub just to remove splash in their builds.
3. Splash is customised with Daggerfall Workshop logo above Unity logo and a blurred background. It looks nicer than the default white-on-black splash and gives future stewards or forks the ability to customise splash with their own logo and background. Every DFU variant can customise their own startup look.

Author: Interkarma

ProjectSettings/ProjectSettings.asset

@@ -17,7 +17,7 @@ PlayerSettings:
   defaultCursor: {fileID: 2800000, guid: 887ec86cd12e1624d8458c8d7950402a, type: 3}
   cursorHotspot: {x: 0, y: 0}
   m_SplashScreenBackgroundColor: {r: 0.13725491, g: 0.12156863, b: 0.1254902, a: 1}
-  m_ShowUnitySplashScreen: 0
+  m_ShowUnitySplashScreen: 1
   m_ShowUnitySplashLogo: 1
   m_SplashScreenOverlayOpacity: 1
   m_SplashScreenAnimation: 1