Lots of updates across all parts of the system to get this working. Big
changes to routing, streaming, connection management, etc.
* Persistent sessions behind a metadata flag for now
* New backlog queue in the router to prevent hanging
* Fix connection Close() issues that caused hangs when network was down
* Fix issue with random routeids (need to be generated fresh each time
the JWT is used and not fixed) so you can run multiple-wsh commands at
once
* Fix issue with domain sockets changing names across wave restarts
(added a symlink mechanism to resolve new names)
* ClientId caching in main server
* Quick reorder queue for input to prevent out of order delivery across
multiple hops
* Fix out-of-order event delivery in router (remove unnecessary go
routine creation)
* Environment testing and fix environment variables for remote jobs (get
from connserver, add to remote job starts)
* Add new ConnServerInit() remote method to call before marking
connection up
* TODO -- remote file transfer needs to be fixed to not create OOM
issues when transferring large files or directories
the PR spiraled and ended up being much larger than anticipated.
it is a refactor of wshrouter to have it track "links" as opposed to
just routes. this lets us simplify a lot of things when it comes to
multi-level routing.
* now the router can handle unauthenticated links directly, instead of a
weird limbo in wshproxy
* no more wshmultiproxy
* no more "authtoken" weirdness
* more straightforward handling in connserver (when using router option)
also adds more debugging, more logging, some windows fixes, other wsl
fixes
