Add configurable particle slot model

Introduce parameters, particle types, designs and entries that build the
existing particle elements, store each of the 7 particle slots in its own
UserConfig key, and let LobbyPlayer select a slot next to the old enum
particles. Slots 4-5 need a team, 6-7 the server team.

LobbySystem/src/de/steamwar/lobby/particle/ParticleRequirement.java

@@ -41,6 +41,10 @@ public interface ParticleRequirement {
 
     boolean test(SteamwarUser user, Set<Integer> eventTeilname, String eggHuntConfig);
 
+    default boolean test(UnlockContext context) {
+        return test(context.getUser(), context.getEvents(), context.getEggHuntConfig());
+    }
+
     ParticleRequirement SERVER_TEAM = new ParticleRequirement() {
         @Override
         public String getRequirementName(Player player) {
@@ -51,6 +55,11 @@ public interface ParticleRequirement {
         public boolean test(SteamwarUser user, Set<Integer> eventTeilname, String eggHuntConfig) {
             return user.hasPerm(UserPerm.TEAM);
         }
+
+        @Override
+        public boolean test(UnlockContext context) {
+            return context.getUser().hasPerm(UserPerm.TEAM);
+        }
     };
 
     ParticleRequirement NO_REQUIRMENT = new ParticleRequirement() {
@@ -63,6 +72,29 @@ public interface ParticleRequirement {
         public boolean test(SteamwarUser user, Set<Integer> eventTeilname, String eggHuntConfig) {
             return true;
         }
+
+        @Override
+        public boolean test(UnlockContext context) {
+            return true;
+        }
+    };
+
+    // Unlike HAS_TEAM this does not also pass for the server team
+    ParticleRequirement TEAM_MEMBER = new ParticleRequirement() {
+        @Override
+        public String getRequirementName(Player player) {
+            return LobbySystem.getMessage().parse("PARTICLE_UNLOCKED_BY_TEAM", player);
+        }
+
+        @Override
+        public boolean test(SteamwarUser user, Set<Integer> eventTeilname, String eggHuntConfig) {
+            return user.getTeam() != 0;
+        }
+
+        @Override
+        public boolean test(UnlockContext context) {
+            return context.getUser().getTeam() != 0;
+        }
     };
     ParticleRequirement HAS_TEAM = new ParticleRequirement() {
         @Override