Deduplicate builtin name list

valuescript_common/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "valuescript_common"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+strum = "0.24"
+strum_macros = "0.24"

valuescript_common/src/builtins.rs

@@ -0,0 +1 @@
+pub const BUILTIN_NAMES: [&str; 4] = ["Debug", "Math", "String", "Number"];

valuescript_common/src/lib.rs

@@ -0,0 +1,3 @@
+mod builtins;
+
+pub use builtins::*;