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_test.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestCreateLoggerBasics(t *testing.T) {
+	logger = nil
+
+	if err := createLogger(); err != nil {
+		t.Errorf("unexpected error creating logger: %v", err)
+		return
+	}
+
+	if logger == nil {
+		t.Errorf("logger null after createLogger()")
+		return
+	}
+
+	logger.Debugf("test message please ignore")
+}