Create fiserv.eno (#493)

* Create fiserv.eno

Pixel scripts found on chipotle.com homepage:
https://lib.paymentjs.firstdata.com/prod/client-2.0.0.js
https://prod.api.firstdata.com/ucom/v2/static/v2/js/ucom-sdk.js	

firstdata.com has no website itself and redirects to fiserv.com. Hence I opted for a simple solution to capture all subdomains with a filter, rather than listing specific subdomains that will likely change.

db/patterns/fiserv.eno

@@ -0,0 +1,12 @@
+name: Fiserv
+category: utilities
+website_url: https://www.fiserv.com/
+organization: fiserv
+
+--- domains
+firstdata.com
+--- domains
+
+--- filters
+||firstdata.com
+--- filters