Implement a proper request tokenizer

src/commands/queue/prioid.rs

@@ -2,6 +2,7 @@ use serde::{Deserialize, Serialize};
 
 use crate::{
     Request,
+    request_tokenizer::RequestTokenizer,
     commands::{
         Command, RequestParserError, RequestParserResult, ResponseAttributes, ResponseParserError,
     },
@@ -31,7 +32,7 @@ impl Command for PrioId {
         format!("{} {} {}", Self::COMMAND, request.prio, songids)
     }
 
-    fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
+    fn parse_request(mut parts: RequestTokenizer<'_>) -> RequestParserResult<'_> {
         let prio = parts.next().ok_or(RequestParserError::UnexpectedEOF)?;
         let prio = prio
             .parse()