migrate orion repo into monorepo structure

go/internal/utils/slices.go

@@ -0,0 +1,15 @@
+package utils
+
+func Unique(slice []string) []string {
+	keys := make(map[string]bool)
+	list := []string{}
+
+	for _, entry := range slice {
+		if _, value := keys[entry]; !value {
+			keys[entry] = true
+			list = append(list, entry)
+		}
+	}
+
+	return list
+}