This commit makes sure the sweep requests are received before mining
blocks to trigger the actual sweeping.
In addition, `testFundingExpiryBlocksOnPending` is updated to deal with
the old `channel link not found` issue.
This commit adds a new itest case to check the race condition found in
issue #7401. In order to control the funding manager's state, a new dev
config for the funding manager is introduced to specify a duration we
should hold before processing remote node's channel_ready message.
A new development config, `DevConfig` is introduced in `lncfg` and will
only have effect if built with flag `integration`. This can also be
extended for future integration tests if more dev-only flags are needed.
We test both the happy path (valid memo is returned when querying),
as well as the unhappy path (invalid memo rejects the open action).
To accomplish this, we update the OpenChannelParams struct inside
the harness to accept the Memo.
This commit enhances the custom fee policy channel open test by adding a
second channel and testing forwarding payments through the channel with
the custom forwarding policies.
This was able to reproduce the bug reported in #5796 which was fixed in
a previous commit of this PR.
