Add GrLibLoader library config for Resemble.js

This will be used by the new image diff UI for highlighting changes
between the base and revision image when requested.

Change-Id: I6487039ee4af0a1ed6d02f97d940a146a2914dea
diff --git a/Documentation/licenses.txt b/Documentation/licenses.txt
index 1bff25c..0c06dae 100644
--- a/Documentation/licenses.txt
+++ b/Documentation/licenses.txt
@@ -3209,6 +3209,7 @@
 [[DefinitelyTyped]]
 DefinitelyTyped
 
+* @types/resemblejs
 * @types/resize-observer-browser
 
 [[DefinitelyTyped_license]]