Add debcargo packaging metadata.

Author: arusahni

Cargo.toml

@@ -45,3 +45,15 @@ yaml-rust = "0.4.3"
 [dependencies.clap]
 version = "~2.33"
 features = ["yaml"]
+
+[package.metadata.deb]
+assets = [
+  ["target/release/git-req", "usr/bin/", "755"],
+  ["LICENSE-MIT", "usr/share/doc/git-req/", "644"],
+  ["README.md", "usr/share/doc/git-req/README", "644"],
+  # The man page is automatically generated by git-req's build process, so
+  # this file isn't actually commited. Instead, to create a dpkg, either
+  # create a deployment directory and copy the man page to it, or make a build
+  # release.
+  ["target/release/git-req.1", "usr/share/man/man1/git-req.1", "644"],
+]