change toml to be a workspace instead of a project

Cargo.toml

@@ -1,31 +1,7 @@
-[package]
-name = "rust-chat-server"
-version = "0.1.5"
-authors = ["Mitchell <mitchellhardie1@gmail.com>"]
-edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-regex = "1"
-crossbeam = "0.8.0"
-crossbeam-channel = "0.5.0"
-crossbeam-queue = "0.3.1"
-parking_lot = "0.11.1"
-dashmap = "4.0.2"
-rayon = "1.3.1"
-zeroize = "1.1.0"
-crossterm = "0.19.0"
-clap = "2.33.3"
-log = "0.4"
-url = "2.2.0"
-uuid = {version = "0.8", features = ["serde", "v4"]}
-serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-
-
-[profile.dev]
-opt-level = 0
-
-[profile.release]
-opt-level = 3
+[workspace]
+members = [
+  'foundation',
+  'server',
+  'client',
+  'serverctl'
+]