feat(unstable): support bytes and text imports in deno compile (#29924)

Also includes:

- https://github.com/denoland/deno_graph/pull/593

Closes https://github.com/denoland/deno/issues/29903
Closes https://github.com/denoland/deno/issues/29927

cli/lib/util/text_encoding.rs

@@ -3,6 +3,10 @@
 use std::borrow::Cow;
 use std::sync::Arc;
 
+pub fn is_valid_utf8(bytes: &[u8]) -> bool {
+  matches!(String::from_utf8_lossy(bytes), Cow::Borrowed(_))
+}
+
 #[inline(always)]
 pub fn from_utf8_lossy_owned(bytes: Vec<u8>) -> String {
   match String::from_utf8_lossy(&bytes) {