add a Nushell module to manipulate bytes as `list<int>`

binary.nu

+# decode a list of integer bytes into the underlying encoded string
+export def "bytes decode" [encoding: string = "utf-8"]: list<int> -> string {
+    each { into binary | bytes at 0..1 } | bytes collect | decode $encoding
+}
+
+# encode an encoded string into the underlying list of integer bytes
+export def "bytes encode" [encoding: string = "utf-8"]: string -> list<int> {
+    let bytes = $in | encode $encoding
+    seq 1 ($bytes | bytes length) | each {|i|
+        $bytes | bytes at ($i - 1)..($i) | into int
+    }
+}