fixes and refactors

- use macros for the evals
- move some space stuff into submodules
- partial update to doctests

src/sing.rs

@@ -25,7 +25,7 @@ pub trait Audio {
 /// Wraps [JackState], and through it [jack::Client] when connected.
 ///
 /// ```
-/// let jack = tengri::Jack::default();
+/// let jack = tengri::sing::Jack::default();
 /// ```
 #[derive(Clone, Debug, Default)] pub struct Jack<'j> (
     pub(crate) Arc<RwLock<JackState<'j>>>
@@ -36,7 +36,7 @@ pub trait Audio {
 /// [jack::Client], which you can use to talk to the JACK API.
 ///
 /// ```
-/// let state = tengri::JackState::default();
+/// let state = tengri::sing::JackState::default();
 /// ```
 #[derive(Debug, Default)] pub enum JackState<'j> {
     /// Unused
@@ -223,7 +223,7 @@ impl JackPerfModel for PerfModel {
 /// Things that can provide a [jack::Client] reference.
 ///
 /// ```
-/// use tengri::{Jack, HasJack};
+/// use tengri::sing::{Jack, HasJack};
 ///
 /// let jack: &Jack = Jacked::default().jack();
 ///