This commit changes the stable protocol version to be the Musig2 protocol.
The experimental version is set to the stable version
in order for the flag to still work if a user has it set.
This commit adds a new struct to hold all HTLC keys and refactors the
SwapContract which is used by both loopin and loopout swaps to use this
new struct. The newly added internal keys will for now hold the script
keys to keep everything equivalent but are already stored and read back
if the protocol version is set to MuSig2.
This commit adds a new protocol version which will add MuSig2 loop in
and loop out using key reveal and extends the existing protocol with new
message members to be able to pass around htlc internal public keys.
The commit also fixes some minor formatting issues in the server proto.
Protobuf does not allow naming conflicts for files within the same
process, because all proto messages register themselves in a global
registry.
This is problematic because the server's itests import the client's
looprpc package to make rpc queries to the loopd client, thus importing
duplicate common.proto and server.proto from the client's looprc package
(since they're both in there as well).
This change moves the server's proto files into their own directory so
that they are not imported when we want to use the client's files. We
cannot change the package name for the server, because that would be
a breaking change (the package name is included in URIS). Fortunately,
we have the go_package option which allows us to place generated files
in a different location.
This commit bumps the current protocol version and integrates htlc v2
with loop in/out for new swaps, while keeping htlc v1 for any pending
swaps with previous protocol versions.
This commit adds the protocol version to each stored swap. This will be
used to ensure that when swaps are resumed after a restart, they're
correctly handled given any breaking protocol changes.
