Add SpongeAPI to Maven POM
Add SpongeAPI to Maven POM

GlowstoneMC/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,keke142/GlowstonePlusPlus,BlazePowered/Blaze-Server,GreenBeard/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,BlazePowered/Blaze-Server,Postremus/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,keke142/GlowstonePlusPlus,keke142/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,BlazePowered/Blaze-Server,GlowstoneMC/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,Postremus/GlowstonePlusPlus,keke142/GlowstonePlusPlus,GlowstoneMC/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,GlowstonePlusPlus/GlowstonePlusPlus,GreenBeard/GlowstonePlusPlus,LukBukkit/GlowstonePlusPlus,jimmikaelkael/GlowstonePlusPlus,BlazePowered/Blaze-Server