* [ftr] remove digdug, use chromedriver directly
why?
- digdug is meant to be used by intern, and expects a certain lifecycle that the FTR has tried and continuously fails to mimic
- rather than continue trying to force digdug into the stack, just spawn chromedriver ourselves. We know how to handle it
- cleans up verbose remote logging while we're in there, since selenium-standalone-server went with digdug, which was previously doing the verbose logging
- deprecate config.servers.webdriver
- add config.chromedriver.url
- if url at config.chromedriver.url points to a server that responds to http requests use it as the chromedriver instance, enables running chrome in a VM or container
- if pings to config.chromedriver.url fail a local chromedriver is started
* address review requests
f76bef46c0