Add tokio crate

Cargo.lock

@@ -1492,6 +1492,7 @@ name = "ingest"
 version = "0.1.0"
 dependencies = [
  "libretunes",
+ "tokio",
 ]
 
 [[package]]
@@ -2799,6 +2800,15 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.7"
@@ -3054,7 +3064,9 @@ dependencies = [
  "bytes",
  "libc",
  "mio",
+ "parking_lot",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "windows-sys 0.52.0",

Cargo.toml

@@ -5,3 +5,4 @@ edition = "2021"
 
 [dependencies]
 libretunes = { git = "https://git.libretunes.xyz/LibreTunes/LibreTunes.git", default-features = false, features = ["ssr"] }
+tokio = { version = "1", features = ["full"] }