adds speech word time offset and refactors everything (GoogleCloudPlatform#410)

Author: bshaffer

speech/api/README.md renamed to speech/README.md

@@ -0,0 +1,24 @@
+{
+    "require": {
+        "google/cloud-speech": "^0.6",
+        "google/cloud-storage": "^1.1.3",
+        "symfony/console": "^3.0",
+        "google/gax": "^0.21.2",
+        "google/proto-client": "^0.22.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Google\\Cloud\\Samples\\Speech\\": "src/"
+        },
+        "files": [
+            "src/streaming_recognize.php",
+            "src/transcribe_async.php",
+            "src/transcribe_async_gcs.php",
+            "src/transcribe_sync.php",
+            "src/transcribe_sync_gcs.php"
+        ]
+    },
+    "require-dev": {
+        "phpunit/phpunit": "~4"
+    }
+}