Added GeckoAPI class and registration for it

src/main/java/com/goodbird/npcgecko/api/GeckoAPI.java

@@ -0,0 +1,40 @@
+package com.goodbird.npcgecko.api;
+
+import com.goodbird.npcgecko.network.CPacketSyncManualAnim;
+import com.goodbird.npcgecko.network.NetworkHandler;
+import cpw.mods.fml.common.FMLCommonHandler;
+import cpw.mods.fml.relauncher.Side;
+import net.minecraft.entity.player.EntityPlayerMP;
+import noppes.npcs.api.entity.ICustomNpc;
+import noppes.npcs.api.entity.IPlayer;
+import noppes.npcs.entity.EntityNPCInterface;
+import software.bernie.geckolib3.core.builder.AnimationBuilder;
+
+public class GeckoAPI extends AbstractGeckoAPI {
+    public static Side side = FMLCommonHandler.instance().getEffectiveSide();
+    private static AbstractGeckoAPI Instance;
+
+    private GeckoAPI() {}
+
+    public static AbstractGeckoAPI Instance() {
+        if (GeckoAPI.Instance == null) {
+            Instance = new GeckoAPI();
+        }
+        return Instance;
+    }
+
+    @Override
+    public AnimationBuilder createAnimationBuilder() {
+        return new AnimationBuilder();
+    }
+
+    @Override
+    public void syncAnimForPlayer(ICustomNpc<EntityNPCInterface> npc, AnimationBuilder builder, IPlayer<EntityPlayerMP> player) {
+        NetworkHandler.sendToPlayer(new CPacketSyncManualAnim(npc.getMCEntity(),builder), player.getMCEntity());
+    }
+
+    @Override
+    public void syncAnimForAll(ICustomNpc<EntityNPCInterface> npc, AnimationBuilder builder) {
+        NetworkHandler.sendToAll(new CPacketSyncManualAnim(npc.getMCEntity(),builder));
+    }
+}