Changed particle effects

Message renamed to GameOverMessage + improved look
Added first implementation of GoalScreen
Cleaned up and improved look of levelButton, worldButton and their screens

app/build/intermediates/assets/debug/particleEffects/collectStar.pe

@@ -38,7 +38,7 @@ active: false
 - Y Offset - 
 active: false
 - Spawn Shape - 
-spawnShape: point
+shape: point
 - Spawn Width - 
 lowMin: 0.0
 lowMax: 0.0
@@ -110,20 +110,16 @@ active: false
 - Gravity - 
 active: false
 - Tint - 
-colorsCount: 9
+colorsCount: 6
 colors0: 1.0
 colors1: 0.92941177
 colors2: 0.047058824
 colors3: 1.0
 colors4: 0.92941177
 colors5: 0.047058824
-colors6: 1.0
-colors7: 0.78039217
-colors8: 0.047058824
-timelineCount: 3
+timelineCount: 2
 timeline0: 0.0
-timeline1: 0.7521515
-timeline2: 1.0
+timeline1: 1.0
 - Transparency - 
 lowMin: 0.0
 lowMax: 0.0

app/build/intermediates/assets/debug/particleEffects/explosion.pe

@@ -44,7 +44,7 @@ active: false
 - Y Offset - 
 active: false
 - Spawn Shape - 
-spawnShape: square
+shape: square
 - Spawn Width - 
 lowMin: 200.0
 lowMax: 200.0

app/build/intermediates/assets/debug/particleEffects/magnet.pe

@@ -38,7 +38,7 @@ active: false
 - Y Offset - 
 active: false
 - Spawn Shape - 
-spawnShape: point
+shape: point
 - Spawn Width - 
 lowMin: 0.0
 lowMax: 0.0