Create a message queue

The create command creates a new message queue with support of the
typical parameters `mode`, `capacity` and `msgsize`. This command also
supports the global argument `verbose`.

Cargo.lock

@@ -1,5 +1,11 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "anyhow"
+version = "1.0.41"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15af2628f6890fe2609a3b91bef4c83450512802e59489f9c1cb1fa5df064a61"
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -105,7 +111,9 @@ checksum = "12b8adadd720df158f4d70dfe7ccc6adb0472d7c55ca83445f6a5ab3e36f8fb6"
 name = "mqrs"
 version = "0.1.0-dev"
 dependencies = [
+ "anyhow",
  "clap",
+ "posixmq",
 ]
 
 [[package]]
@@ -114,6 +122,15 @@ version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "afb2e1c3ee07430c2cf76151675e583e0f19985fa6efae47d6848a3e2c824f85"
 
+[[package]]
+name = "posixmq"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5e01860c5a0b0c823066268fb7950019bac142c1cb8919e774823fe510e697a"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"