Add PHPdoc to all methods, minor code reorder

Move some methods around to have them together by call order logic.

Also update current test methods with composer based .env reader.

test/aws_read_env_tests.php

@@ -0,0 +1,23 @@
+<?php
+
+// just print out env data nd connect data
+// checkMe from AmazonIntentives call is requal to
+// run_info_test === true in aws_gift_card_tests.php
+
+$loader = require '../vendor/autoload.php';
+// need to add this or it will not load here
+$loader->addPsr4('gullevek\\', __DIR__ . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'src');
+// print "LOADER: <pre>" . print_r($loader, true) . "</pre>";
+
+use gullevek\AmazonIncentives\AmazonIncentives;
+use gullevek\dotEnv\DotEnv;
+
+// load env data with dotenv
+DotEnv::readEnvFile(__DIR__);
+
+print "_ENV: <pre>" . print_r($_ENV, true) . "</pre>";
+
+$aws = new AmazonIncentives();
+print "checkMe: <pre>" . print_r($aws->checkMe(), true) . "</pre>";
+
+// __END__