Add Clap and base config

src/infra/cli.rs

@@ -0,0 +1,10 @@
+use clap::Clap;
+
+/// lldap is a lightweight LDAP server
+#[derive(Debug, Clap)]
+#[clap(version = "0.1", author = "The LLDAP team")]
+pub struct CLIOpts;
+
+pub fn init() -> CLIOpts {
+    CLIOpts::parse()
+}

src/infra/configuration.rs

@@ -0,0 +1,6 @@
+#[derive(Debug, Default)]
+pub struct Configuration;
+
+pub fn init() -> Configuration {
+    Configuration::default()
+}

src/infra/mod.rs

@@ -0,0 +1,2 @@
+pub mod cli;
+pub mod configuration;