Added sample code for getting and listing hypervisors

Author: haphan

samples/compute/v2/hypervisors/get_hypervisor.php

@@ -0,0 +1,26 @@
+<?php
+
+use OpenStack\Compute\v2\Models\Hypervisor;
+
+require 'vendor/autoload.php';
+
+$openstack = new OpenStack\OpenStack([
+    'authUrl' => '{authUrl}',
+    'region'  => '{region}',
+    'user'    => [
+        'id'       => '{userId}',
+        'password' => '{password}'
+    ],
+    'scope'   => ['project' => ['id' => '{projectId}']]
+]);
+
+$compute = $openstack->computeV2(['region' => '{region}']);
+
+$hypervisor = $compute->getHypervisor(['id' => '{hypervisorId}']);
+
+// By default, this will return an empty Server object and NOT hit the API.
+// This is convenient for when you want to use the object for operations
+// that do not require an initial GET request. To retrieve the server's details,
+// run the following, which *will* call the API with a GET request:
+
+$hypervisor->retrieve();

samples/compute/v2/hypervisors/list_hypervisors.php

@@ -0,0 +1,23 @@
+<?php
+
+use OpenStack\Compute\v2\Models\Hypervisor;
+
+require 'vendor/autoload.php';
+
+$openstack = new OpenStack\OpenStack([
+    'authUrl' => '{authUrl}',
+    'region'  => '{region}',
+    'user'    => [
+        'id'       => '{userId}',
+        'password' => '{password}'
+    ],
+    'scope'   => ['project' => ['id' => '{projectId}']]
+]);
+
+$compute = $openstack->computeV2(['region' => '{region}']);
+
+$hypervisors = $compute->listHypervisors();
+
+foreach($hypervisors as $hypervisor) {
+    /**@var Hypervisor $hypervisor*/
+}