feat(plugins): add platforms info

src/plugins/camera.ts

@@ -104,7 +104,8 @@ export interface CameraPopoverOptions {
 @Plugin({
   plugin: 'cordova-plugin-camera',
   pluginRef: 'navigator.camera',
-  repo: 'https://github.com/apache/cordova-plugin-camera'
+  repo: 'https://github.com/apache/cordova-plugin-camera',
+  platforms: ['Android','BlackBerry','Browser','Firefox','FireOS','iOS','Windows','Windows Phone 8','Ubuntu']
 })
 export class Camera {
   /**
@@ -121,6 +122,7 @@ export class Camera {
    * Remove intermediate image files that are kept in temporary storage after calling camera.getPicture.
    * Applies only when the value of Camera.sourceType equals Camera.PictureSourceType.CAMERA and the Camera.destinationType equals Camera.DestinationType.FILE_URI.
    * @return Returns a Promise
+   * @platforms ['iOS']
    */
   @Cordova()
   static cleanup(){};