A demo combine skynet with ejoy2d
skynet: https://github.com/cloudwu/skynet ejoy2d: https://github.com/cloudwu/ejoy2d
省掉了资源，只有纯代码部分，仅供娱乐。
将ejoy2d作为一个service嵌入skynet中。主要增改的地方有： lualib/action.lua lualib/ejoy2dx.lua lualib/item.lua lualib/sprite.lua lualib/ui.lua lualib/util.lua lualib/view.lua lualib/ejoy2d/init.lua lualib/ejoy2d/view.lua service/window.lua asset/design_explore.lua asset/design_interfclt.lua lualib-src/ejoy2d/lsprite.c lualib-src/ejoy2d/sprite.c lualib-src/ejoy2d/shader lualib-src/ejoy2d/texture.c