Improve CrawlDecision
Improve CrawlDecision

Makes it easier to implement methods returning CrawlDecision

coveo/abot,fyang0321/WebCrawler,RoninWest/abot,tru3d3v/abot,RoninWest/abot,fyang0321/WebCrawler,sjdirect/abot,vladimir-pecanac-main/abot,xavivars/abot,obender/abot