Various progress, doesnt compile

Added prelude, made lambdas a single-token prefix like NS, made progress on implementations, removed const line type

orchid-api/src/parser.rs

@@ -59,7 +59,7 @@ pub struct ParsedMember {
 #[derive(Clone, Debug, Coding)]
 pub enum ParsedMemberKind {
 	Constant(ParsedConstId),
-	Module(Vec<ParsedLine>),
+	Module { lines: Vec<ParsedLine>, use_prelude: bool },
 }
 
 /// Obtain the value of a parsed constant. This is guaranteed to be called after