Adopted composer autoload way

Split up classes into separate way, to allow autoloader to do it's work

Signed-off-by: Diederik de Groot <ddegroot@talon.nl>

lib/TFTP/Error.php

@@ -0,0 +1,44 @@
+<?php
+/*
+ * PHP TFTP Server
+ *
+ * Copyright (c) 2011 <mattias.wadman@gmail.com>
+ *
+ * MIT License:
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+declare(strict_types=1);
+namespace PROVISION\TFTP;
+
+use PROVISION\Logger as Logger;
+
+class Error
+{
+  const NOT_DEFINED = 0; // see error message instead of error code
+  const FILE_NOT_FOUND = 1;
+  const ACCESS_VIOLATION = 2;
+  const DISK_FULL = 3;
+  const ILLEGAL_OPERATION = 4;
+  const UNKNOWN_TID = 5; // unknown transfer (id is ip:port pair)
+  const FILE_ALREADY_EXISTS = 6;
+  const NO_SUCH_USER = 7;
+  const OACK_FAILURE = 8;
+}
+?>