Guidewire DevConnect builds on existing Marketplace and provides P&C insurers ‘plug and play’ Add-ons to leading industry solutions FOSTER CITY, Calif.--(BUSINESS WIRE)--lt;a href="https://twitter.com/search?q=%24GWRE&src=ctag" target="_blank"gt;$GWRElt;/agt; lt;a href="https://twitter.com/hashtag/APIs?src=hash" target="_blank"gt;#APIslt;/agt;--Guidewire Software, Inc. (NYSE: GWRE), provider of the industry platform Property and Casualty (P&C) insurers rely upon, today announced the…