Added Environment container

src/Environment.js

@@ -0,0 +1,17 @@
+export default {
+  
+  /**
+   * A generic container for RecogitoJS/Annotorious 
+   * to store globally available environment info. The 
+   * most important piece of information is user auth 
+   * info. Example:
+   *
+   * user: { id, displayName, email, avatarURL }
+   * 
+   * id ........... the host application user ID (should be a URI, but could be username) REQUIRED
+   * displayName .. screen display or nickname OPTIONAL (id is used when empty)
+   * email ........ OPTIONAL
+   * avatarURL .... OPTIONAL + not supported at the moment
+   */
+
+}

src/index.js

@@ -1,3 +1,4 @@
+export { default as Environment } from './Environment';
 export { default as TextAnnotator } from './TextAnnotator';
 export { default as WebAnnotation } from './WebAnnotation';