Add Galaxy repository API and clients

clients/rust/Cargo.lock

@@ -595,6 +595,7 @@ dependencies = [
  "clap",
  "futures-util",
  "mxgateway-client",
+ "prost-types",
  "serde",
  "serde_json",
  "tokio",
@@ -886,6 +887,16 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4db69cba1110affc0e9f7bcd48bbf87b3f4fc7c61fc9155afd4c469eb3d6c1b"
+dependencies = [
+ "errno",
+ "libc",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.12"
@@ -990,6 +1001,7 @@ dependencies = [
  "libc",
  "mio",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2 0.6.3",
  "tokio-macros",
  "windows-sys 0.61.2",