Support device requests (fixes #75)

src/main/java/org/mandas/docker/client/messages/HostConfig.java

@@ -268,6 +268,9 @@ public interface HostConfig {
   @JsonProperty("Capabilities")
   List<String> capabilities();
 
+  @JsonProperty("DeviceRequests")
+  List<DeviceRequest> deviceRequests();
+
   @JsonDeserialize(builder = ImmutableHostConfig.LxcConfParameter.Builder.class)
   @Immutable
   public interface LxcConfParameter {
@@ -500,6 +503,8 @@ default Builder hostPidMode() {
 
     Builder capabilities(Iterable<String> capabilities);
 
+    Builder deviceRequests(Iterable<? extends DeviceRequest> deviceRequests);
+
     HostConfig build();
   }
 
@@ -658,4 +663,42 @@ interface Builder {
       BlkioDeviceRate build();
     }
   }
+
+  @JsonDeserialize(builder = ImmutableHostConfig.DeviceRequest.Builder.class)
+  @Immutable
+  public interface DeviceRequest {
+
+	  @JsonProperty("Driver")
+	  String driver();
+
+	  @JsonProperty("Count")
+	  Integer count();
+
+	  @JsonProperty("DeviceIDs")
+	  List<String> deviceIds();
+
+	  @JsonProperty("Capabilities")
+	  List<String> capabilities();
+
+	  @JsonProperty("Options")
+	  Map<String, String> options();
+
+	  public static Builder builder() {
+	    return ImmutableHostConfig.DeviceRequest.builder();
+      }
+
+      interface Builder {
+        Builder driver(final String driver);
+
+        Builder count(final Integer count);
+
+        Builder deviceIds(final Iterable<String> deviceIds);
+
+        Builder capabilities(final Iterable<String> capabilities);
+
+        Builder options(final Map<String, ? extends String> options);
+
+        DeviceRequest build();
+    }
+  }
 }