setup main project layout

Co-authored-by: Clément Rehs <clement.rehs@epita.fr>

src/lib/harsh.rs

@@ -0,0 +1,14 @@
+use super::config::Configuration;
+use super::database::DbManager;
+use super::http::serve;
+use super::log::Logger;
+
+///
+/// main function
+///
+pub fn main() {
+	let configuration = Configuration::read();
+	Logger::configure(&configuration);
+	let mut db_manager = DbManager::new(&configuration);
+	serve(&configuration, &mut db_manager);
+}