Added assetserver and macro

crates/assetserver/src/lib.rs

@@ -0,0 +1,16 @@
+/// A static asset with compile-time embedded data.
+pub trait Asset {
+	/// The common URL prefix for all assets (e.g., "/assets")
+	const URL_PREFIX: &'static str;
+
+	/// The specific URL path for this asset (e.g., "/logo.png")
+	const URL_POSTFIX: &'static str;
+
+	/// The full URL for this asset (e.g., "/assets/logo.png")
+	const URL: &'static str;
+
+	/// The embedded file contents as a byte slice
+	const BYTES: &'static [u8];
+}
+
+// TODO: image manipulation