Typescript types for http binary emitter

Signed-off-by: Fabio José <fabiojose@gmail.com>

v1/index.d.ts

@@ -43,6 +43,15 @@ export class StructuredHTTPEmitter {
   public emit(event: Cloudevent): Promise<any>;
 }
 
+/**
+ * HTTP emitter for Binary mode
+ */
+export class BinaryHTTPEmitter {
+  public constructor(configuration?: any);
+
+  public emit(event: Cloudevent): Promise<any>;
+}
+
 /**
  * Function to create CloudEvents instances
  */