Rework tracing arguments to --keep-traces & --trace-level

This allows for a more fine-grained control over how the traces are showed. Now users can instrument the compiler to preserve only their user-defined traces, or the only the compiler, or all, or none. We also want to add another trace level on top of that: 'compact' to only show line numbers; which will work for both user-defined and/or compiler-generated traces.

crates/aiken-lsp/src/server/lsp_project.rs

@@ -32,14 +32,9 @@ impl LspProject {
     pub fn compile(&mut self) -> Result<(), Vec<ProjectError>> {
         let checkpoint = self.project.checkpoint();
 
-        let result = self.project.check(
-            true,
-            None,
-            false,
-            false,
-            Tracing::NoTraces,
-            Tracing::NoTraces,
-        );
+        let result = self
+            .project
+            .check(true, None, false, false, Tracing::silent());
 
         self.project.restore(checkpoint);