Changes in api and upwards

- Removed out-of-stack error reporting
- Revised module system to match previous Orchid system
- Errors are now in a Vec everywhere
- Implemented atoms and lexer
- Started implementation of line parser
- Tree is now ephemeral to avoid copying Atoms held inside
- Moved numbers into std and the shared parser into base
- Started implementation of Commands

orchid-base/src/error.rs

@@ -7,7 +7,7 @@ use crate::location::Pos;
 
 /// A point of interest in resolving the error, such as the point where
 /// processing got stuck, a command that is likely to be incorrect
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct ErrorPosition {
   /// The suspected origin
   pub position: Pos,
@@ -35,7 +35,7 @@ impl From<Pos> for ErrorPosition {
   fn from(origin: Pos) -> Self { Self { position: origin, message: None } }
 }
 
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct OwnedError {
   pub description: Tok<String>,
   pub message: Arc<String>,
@@ -49,4 +49,7 @@ impl OwnedError {
       positions: err.locations.iter().map(ErrorPosition::from_api).collect(),
     }
   }
+  pub fn from_apiv(err: Vec<ProjErr>) -> Vec<Self> {
+    err.into_iter().map(|e| Self::from_api(&e)).collect()
+  }
 }