Remove pub declarations and move to posix::*

This is in order to prepare also for SysV message queues.

src/main.rs

@@ -1,12 +1,16 @@
-use crate::{create::Create, info::Info, recv::Recv, send::Send, unlink::Unlink};
 use anyhow::Result;
 use clap::{crate_authors, crate_version, AppSettings, Clap};
 
-mod create;
-mod info;
-mod recv;
-mod send;
-mod unlink;
+mod posix;
+
+#[derive(Clap, Debug)]
+enum Command {
+    Create(posix::Create),
+    Info(posix::Info),
+    Unlink(posix::Unlink),
+    Send(posix::Send),
+    Recv(posix::Recv),
+}
 
 #[derive(Clap, Debug)]
 #[clap(
@@ -16,21 +20,12 @@ mod unlink;
     global_setting = AppSettings::VersionlessSubcommands,
     global_setting = AppSettings::InferSubcommands,
 )]
-pub struct Opts {
+struct Opts {
     /// Produce verbose output
     #[clap(short, long, global = true)]
-    pub verbose: bool,
+    verbose: bool,
     #[clap(subcommand)]
-    pub command: Command,
-}
-
-#[derive(Clap, Debug)]
-pub enum Command {
-    Create(Create),
-    Info(Info),
-    Unlink(Unlink),
-    Send(Send),
-    Recv(Recv),
+    command: Command,
 }
 
 fn main() -> Result<()> {

src/posix.rs

@@ -0,0 +1,11 @@
+mod create;
+mod info;
+mod recv;
+mod send;
+mod unlink;
+
+pub use create::Create;
+pub use info::Info;
+pub use recv::Recv;
+pub use send::Send;
+pub use unlink::Unlink;