Merge pull request #1657 from TheBlueMatt/2022-08-async-man-update

Add a background processor which is async

diff --cc lightning-background-processor/Cargo.toml
index ef07a3c9df5fe9dfa0dd9752da03c674d8c1271a,e51e2ac1b8e0aa4352664fa8e81db362437cc7ac..c5dcae1d972ce3b656acffc7845b4946c4faf4a4
--- 1/lightning-background-processor/Cargo.toml
--- 2/lightning-background-processor/Cargo.toml
+++ b/lightning-background-processor/Cargo.toml
@@@ -14,9 -14,10 +14,10 @@@ all-features = tru
  rustdoc-args = ["--cfg", "docsrs"]
  
  [dependencies]
 -bitcoin = "0.28.1"
 +bitcoin = "0.29.0"
  lightning = { version = "0.0.110", path = "../lightning", features = ["std"] }
  lightning-rapid-gossip-sync = { version = "0.0.110", path = "../lightning-rapid-gossip-sync" }
+ futures = { version = "0.3", optional = true }
  
  [dev-dependencies]
  lightning = { version = "0.0.110", path = "../lightning", features = ["_test_utils"] }

diff --cc lightning-background-processor/src/lib.rs
Simple merge

diff --cc lightning/src/ln/channelmanager.rs
Simple merge