1677217044

+ Added respawn location marker
+ Music now fades out when loading
+ Music now fades out on game over
+ Added music to electric stage

* Fixed copyright and version text on title screen using the wrong colour
* Fixed title screen projectile not moving to selected difficulty y position
* Fixed an null reference when music fade out routine was executing
* Music fade duration can now be set when routine is called
* Updated Unity Engine to 2020.3.45f1
* Fixed first load scene still trying to run title script