css entities: initial guess

Cargo.toml

@@ -36,8 +36,12 @@ criterion = "0.5.1"
 opt-level = 2
 
 [features]
-default = ["basic"]
+default = [
+	"basic",
+	"css",
+]
 basic = []
+css = []
 
 [[bench]]
 name = "bench"

src/data/entity.rs

@@ -9,6 +9,8 @@ use vdf_reader::VdfError;
 
 #[cfg(feature = "basic")]
 pub mod basic;
+#[cfg(feature = "css")]
+pub mod css;
 
 #[derive(Clone)]
 pub struct Entities {