Project structure refactor:

- Change package name general_server to gateway
- Changing the structure of directories and packages
- Adding vendor to the project

vendor/github.com/yuin/gopher-lua/Makefile

@@ -0,0 +1,10 @@
+.PHONY: build test glua
+
+build:
+	./_tools/go-inline *.go && go fmt . &&  go build
+
+glua: *.go pm/*.go cmd/glua/glua.go
+	./_tools/go-inline *.go && go fmt . && go build cmd/glua/glua.go
+
+test:
+	./_tools/go-inline *.go && go fmt . &&  go test