Ingesting and using configuration for bridges in guardmgr
I think this involves the following:
New public methods on the guard manager for setting the BridgeDescProvider
.
New internal methods on GuardSet
for ingesting a list of BridgeConfig
and updating from a BridgeDescList
. I don't think bridges are very like netdir-based guards, so most of the existing netdir-based machinery probably isn't very helpful.
New machinery for deciding if bridges are enabled and setting the active guard set.
(this is part of #69 (closed))