add logging in gen_listener and don't shortcut shutdown (2600hz#6023)

* ecallmgr node sup which is a supervisor under a supervisor (fs_sup)
  is terminated with shutdown.
  if we find a way to properly shutdown the supervisor with a reason
  we can re-add the shutdown shortcut

(cherry picked from commit 509a03e)

[4.3] fix returning queue_name from gen_listener (2600hz#6010)

- when the queue_name is requested before it is actually done setting
up it will return 'undefined' instead of the to-be-used name, check for
that condition and return the queue_name that is configured instead

setting account to 1 for htek (2600hz#6000)

[4.3] fix gen_listener terminate to not release channel until after (2…

…600hz#5995)

callback terminate
 - allows the callback to still do amqp things in the terminate method

declare exchanges on reconnect - 4.3 (2600hz#5988)

* declare exchanges on reconnect

* exclude passive exchanges
* preserve queue name on reconnect
* generates queue name with module name

* do not publish node when disconnected

* handle_amqp_errored

preserve bindings (2600hz#5986)

if there's an error before the start consume
we can potentially have initial Params
set to empty array and therefore loose the bindings

also, since we're folding the Params into bindings
the return is the list of bindings that we preserve in state,
so we still need to add the existing binding to the acumulator.

we need to set the broker when assigning existing to consumer

we need to send 'channel_lost' if we're moving the channel
to the primary broker

[4.3] PISTON-894: fix crash on usurp publisher in ecallmgr_fs_confere…

…nces_shared for non-loopbacks (2600hz#5969)

[4.3] HELP-44944: testing of the failover_when_all_unreg config flag (2…

…600hz#5959)

* [4.3] HELP-44944: testing of the failover_when_all_unreg config flag

Primarily testing that normal call-forwarded devices are not filtered
when SIP devices are registered.

Also testing that failover is working when SIP devices are
unregistered.

* just compare public fields

[4.3] don't panic when both schedule date keys are present (2600hz#5953)

* don't panic when both schedule date keys are present

* make apis

[4.3] programmatically build the features array - fixup (2600hz#5947)

Provide an seperate array that external apps can manipulate