Updated CRT library, test process, EventLoopGroup API updates (#16)

* Updated to latest aws-crt-ffi, updated EventLoopGroup/options init

* Removed test-ci target, just use test for everything now

* Added event_loop_group API to CRT/stubs

* Removed headers (all generated) from format-check

* Added the ability to force extension vs FFI

* make test will now trigger composer run test/phpunit, and force tests with both FFI and extension

* Updated builder version, removed redundant php7 test run

* Removed type annotations that anger php5, limited backends on php5

composer.json

@@ -10,6 +10,9 @@
             "email": "[email protected]"
         }
     ],
+    "config": {
+        "platform": {"php": "5.6"}
+    },
     "minimum-stability": "alpha",
     "require": {
     },
@@ -30,14 +33,7 @@
         ]
     },
     "scripts": {
-        "test": "phpunit src/tests"
+        "test": "@php -d extension=modules/awscrt.so vendor/bin/phpunit src/tests"
     },
-    "license": "Apache-2.0",
-    "authors": [
-        {
-            "name": "AWS Common Runtime Team",
-            "email": "[email protected]"
-        }
-    ]
+    "license": "Apache-2.0"
 }
-