SQL-2534: Add THIRDPARTY-LICENSE notice (mongodb#324)

* Add THIRDPARTY-LICENSE notice

* Clean-up

Author: nbagnard

resources/third_party_header.txt

@@ -0,0 +1,13 @@
+MongoDB uses third-party libraries or other resources that may
+be distributed under licenses different than the MongoDB software.
+
+In the event that we accidentally failed to list a required notice,
+please bring it to our attention through our JIRA system at:
+
+    https://jira.mongodb.org
+
+The attached notices are provided for information only.
+
+
+                --------------------------
+