Improve endpoint determination code layer

As part of GVA migration #175 (closed), the network layer has been rewritten. Now, that gva is discontinued, let's apply the network layer improvements to bma.

changed milestone to %0.10.0

added CLI Network enhancement labels

assigned to @moul

mentioned in commit e58a31c1

mentioned in merge request !193 (merged)

mentioned in commit 2b9dd511

mentioned in commit b0933c6b

mentioned in commit aa8d6324

mentioned in commit 8f48f827

closed with merge request !193 (merged)