Added 'Shulker Missile' to default skill configs

MMOCore-Dist/src/main/resources/default/skills/shulker-missile.yml

@@ -0,0 +1,35 @@
+name: Shulker Missile
+lore:
+  - 'Shoots four shulker projectiles that'
+  - 'explode on impact, dealing &c{damage} &7damage and'
+  - 'inflicting &cLevitation &7for &c{effect-duration}s&7.'
+  - ''
+  - '&e{cooldown}s Cooldown'
+  - '&9Costs {mana} {mana_name}'
+material: SHULKER_SHELL
+
+parameters:
+  timer: 0
+  delay:
+    base: 2
+    per-level: -0.1
+  mana:
+    base: 8
+    per-level: 1
+  stamina: 0
+  cooldown:
+    base: 2
+    per-level: 1
+
+  # Duration of shulker projectile in seconds
+  duration:
+    base: 4
+    per-level: 0
+    #Optional: The decimal format used for this skill parameter.
+    decimal-format: '0.#'
+  damage:
+    base: 5
+    per-level: 1
+  effect-duration:
+    base: 2
+    per-level: 0