This commit changes the method `ClusterInputs` to also take a default
deadline height. Previously, when calculating the default deadline
height for a non-time sensitive input, we would first cluster it with
other non-time sensitive inputs, then give it a deadline before we are
about to `sweep`. This is now moved to the step where we decide to
cluster inputs, allowing time-sensitive and non-sensitive inputs to be
grouped together, if they happen to share the same deadline heights.
This commit exports and renames the following variable names:
- `PendingInput` is now `PendingInputResponse` as it's responding to a
request.
- `pendingInput` is now renamed and exported as `SweeperInput`.
- `pendingInputs` is now renamed and exported as `InputsMap`.
This commit is first made from running:
```
gofmt -d -w -r 'PendingInput -> PendingInputResponse' .
gofmt -d -w -r 'pendingInput -> SweeperInput' .
gofmt -d -w -r 'pendingInputs -> InputsMap' .
```
And followed by some docs and variable names fixes.
This commit finishes the implementation of `TxPublisher` by adding the
monitor process. Whenever a new block arrives, the publisher will check
all its monitored records and attempt fee bumping them if necessary.
This commit adds `TxPublisher` which implements `Bumper` interface. This
is part one of the implementation that focuses on implementing the
`Broadcast` method which guarantees a tx can be published with
RBF-compliant. It does so by leveraging the `testmempoolaccept` API,
keep increasing the fee rate until an RBF-compliant tx is made and
broadcasts it.
This tx will then be monitored by the `TxPublisher` and in the following
commit, the monitoring process will be added.
This commit adds a new interface, `Bumper`, to handle RBF for a given
input set. It's responsible for creating the sweeping tx using the input
set, and monitors its confirmation status to decide whether a RBF should
be attempted or not.
We leave implementation details to future commits, and focus on mounting
this `Bumper` interface to our sweeper in this commit.
