feat(cli): mgit CLI over the library (flags accepted after positionals)

cmd/mgit/main.go

@@ -0,0 +1,12 @@
+// Command mgit is the Gitea CLI over the mopac-gitea-go library.
+package main
+
+import (
+	"os"
+
+	"git.knownelement.com/ukrrs/mopac-gitea-go/internal/cli"
+)
+
+func main() {
+	os.Exit(cli.Run(os.Args[1:], os.Stdout, os.Stderr))
+}