Add basic randomizer

ALttPRandomizer/IdGenerator.cs

@@ -0,0 +1,19 @@
+namespace ALttPRandomizer {
+    using System;
+
+    public class IdGenerator {
+        private const string chars = "abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789";
+        private const int length = 10;
+        private static Random random = new Random();
+
+        public string GenerateId() {
+            var str = new char[length];
+
+            for (int i = 0; i < length; i++) {
+                str[i] = chars[random.Next(chars.Length)];
+            }
+
+            return new string(str);
+        }
+    }
+}