Add screenshots for all maps (#31)

01_two_hills.conf

@@ -9,3 +9,4 @@ team.1.pos = 7,27,93
 team.2 = blue
 team.2.color = blue
 team.2.pos = -22,28,-78
+screenshot = 01_two_hills.png

02_bridge.conf

@@ -9,3 +9,4 @@ team.1.pos = -57,-20,93
 team.2 = blue
 team.2.color = blue
 team.2.pos = -74,-16,-70
+screenshot = 02_bridge.png

03_caverns.conf

@@ -20,3 +20,4 @@ chests.2.to = 7,15,-33
 chests.3.n = 15
 chests.3.from = -55,-9,-13
 chests.3.to = 7.5,17,17
+screenshot = 03_caverns.png

04_iceage.conf

@@ -10,3 +10,4 @@ team.2 = blue
 team.2.color = blue
 team.2.pos = -74,-62,-79
 initial_stuff = default:sword_steel,default:pick_steel,shooter:rifle,shooter:ammo 3
+screenshot = 04_iceage.png

05_coast.conf

@@ -9,3 +9,4 @@ team.1.pos = 15,3,39
 team.2 = blue
 team.2.color = blue
 team.2.pos = -50,11,-76
+screenshot = 05_coast.png

06_plains.conf

@@ -9,3 +9,4 @@ team.1.pos = -64,16,85
 team.2 = blue
 team.2.color = blue
 team.2.pos = 23,14,-77
+screenshot = 06_plains.png

07_serpents_pass.conf

@@ -15,3 +15,4 @@ chests.1.from = -3,-11,1
 chests.1.to = 3,20,110
 chests.2.from = -3,-11,-110
 chests.2.to = 3,20,-1
+screenshot = 07_serpents_pass.png

08_desert_spikes.conf

@@ -10,3 +10,4 @@ team.2 = blue
 team.2.color = blue
 team.2.pos = 28,-17,-73
 initial_stuff = default:sword_steel,default:pick_stone,default:desert_cobble 20
+screenshot = 08_desert_spikes.png

09_swamplands.conf

@@ -17,3 +17,4 @@ chests.1.to = 109,55,-1
 chests.2.n = 100
 chests.2.from = 109,25,109
 chests.2.to = -109,55,1
+screenshot = 09_swamplands.png

11_forest_map.conf

@@ -10,3 +10,4 @@ team.2 = blue
 team.2.color = blue
 team.2.pos = (-24,-8,-101)
 initial_stuff = default:pick_stone,default:sword_stone,default:axe_stone,default:torch 3
+screenshot = 11_forest_map.png

12_river_valley.conf

@@ -10,3 +10,4 @@ team.2.color = blue
 team.2.pos = (-1,11,-103)
 author = -sniper-
 initial_stuff = default:pick_stone,default:sword_stone,default:torch 3
+screenshot = 12_river_valley.png

13_wall.conf

@@ -11,3 +11,4 @@ h = 50
 team.2.color = blue
 team.2.pos = (-51,-15,-51)
 team.1 = red
+screenshot = 13_wall.png

14_tunnel.conf

@@ -17,3 +17,4 @@ chests.1.to = -31,5,99
 chests.2.n = 30
 chests.2.from = 5,1,-108
 chests.2.to = 28,5,-94
+screenshot = 14_tunnel.png