Implemented new Error handling system

New Error Handling System with custom errors and JSON Error responses

src/error_responses.rs

@@ -0,0 +1,28 @@
+use serde::Serialize;
+
+#[derive(Serialize)]
+pub struct ErrorMessage {
+    pub(crate) code: u16,
+    pub(crate) message: String,
+}
+
+#[derive(Debug)]
+pub struct InternalServerError;
+impl warp::reject::Reject for InternalServerError {}
+
+#[derive(Debug)]
+pub struct BadRequestError;
+impl warp::reject::Reject for BadRequestError {}
+
+#[derive(Debug)]
+pub struct NotFoundError;
+impl warp::reject::Reject for NotFoundError {}
+
+#[derive(Debug)]
+pub struct UnauthorizedError;
+impl warp::reject::Reject for UnauthorizedError {}
+
+#[derive(Debug)]
+pub struct ForbiddenError;
+impl warp::reject::Reject for ForbiddenError {}
+