api: Add go files

I know this is a huge commit, but I can't be bothered to check
this in part by part.

api/utils_logging.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"github.com/op/go-logging"
+)
+
+var logger *logging.Logger
+
+func createLogger() error {
+	format := logging.MustStringFormatter("[%{level}] %{shortfile} %{shortfunc}(): %{message}")
+	logging.SetFormatter(format)
+	logger = logging.MustGetLogger("commento")
+
+	return nil
+}