Add more kms samples, refactors to commands (GoogleCloudPlatform#305)

Author: bshaffer

kms/api/README.md

@@ -18,17 +18,16 @@ These samples show how to use the [Google Cloud KMS API]
 4.  **Install dependencies** via [Composer](http://getcomposer.org/doc/00-intro.md).
     Run `php composer.phar install` (if composer is installed locally) or `composer install`
     (if composer is installed globally).
-5.  **Run**:
-```sh
-$ php create_keyring.php
-Usage: create_keyring.php [project_id] [name]
-$ php create_cryptokey.php
-Usage: create_cryptokey.php [project_id] [keyring] [name]
-$ php encrypt.php
-Usage: encrypt.php [key_name] [infile] [outfile]
-$ php decrypt.php
-Usage: decrypt.php [key_name] [infile] [outfile]
+5.  Run `php kms.php`. The following commands are available:
+
+    ```sh
+    encryption    Manage encryption for KMS
+    iam           Manage IAM for KMS
+    key           Manage keys for KMS
+    keyring       Manage keyrings for KMS
+    version       Manage key versions for KMS
 ```
+6. Run `php kms.php COMMAND --help` to print information about the usage of each command.
 
 ## Contributing changes
 

kms/api/composer.json

@@ -1,8 +1,12 @@
 {
     "require": {
-        "google/apiclient": "^2.1"
+        "google/apiclient": "^2.1",
+        "symfony/console": " ^3.0"
     },
-    "require-dev": {
-        "symfony/process": "^3.2"
+    "autoload": {
+        "psr-4": { "Google\\Cloud\\Samples\\Kms\\": "src" },
+        "files": [
+            "src/functions.php"
+        ]
     }
 }