feat: project scaffold, version command, build

cmd/emcli/main.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"git.dcglab.co.uk/steve/emcli/internal/version"
+)
+
+func main() {
+	if len(os.Args) >= 2 && os.Args[1] == "version" {
+		fmt.Println(version.String)
+		return
+	}
+	fmt.Fprintln(os.Stderr, "emcli: no command given")
+	os.Exit(2)
+}