Add utils crates

src/constants/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "tribufu-constants"
+version = "0.0.5"
+description = "Tribufu Constants"
+repository = "https://github.com/tribufu/tribufu-rust"
+authors = ["Tribufu <contact@tribufu.com>"]
+edition = "2021"
+publish = false
+
+[lib]
+name = "tribufu_constants"
+crate-type = ["rlib"]
+path = "lib.rs"
+
+[build-dependencies]
+vergen = { version = "=5.1.5", default-features = false, features = [
+    "build",
+    "cargo",
+    "rustc",
+] }