Add pear modules, mail and net_smtp via composer (#93)

Add pear modules, mail and net_smtp via composer, remove php 5.6 build due to phpunit 6

lib/composer/vendor/theseer/tokenizer/tests/TokenTest.php

@@ -0,0 +1,31 @@
+<?php declare(strict_types = 1);
+namespace TheSeer\Tokenizer;
+
+use PHPUnit\Framework\TestCase;
+
+class TokenTest extends TestCase {
+
+    /** @var  Token */
+    private $token;
+
+    protected function setUp() {
+        $this->token = new Token(1,'test-dummy', 'blank');
+    }
+
+    public function testTokenCanBeCreated() {
+        $this->assertInstanceOf(Token::class, $this->token);
+    }
+
+    public function testTokenLineCanBeRetrieved() {
+        $this->assertEquals(1, $this->token->getLine());
+    }
+
+    public function testTokenNameCanBeRetrieved() {
+        $this->assertEquals('test-dummy', $this->token->getName());
+    }
+
+    public function testTokenValueCanBeRetrieved() {
+        $this->assertEquals('blank', $this->token->getValue());
+    }
+
+}