Restructure the native module

Consolidate all code into the src folder

native/src/base/lib.rs

@@ -0,0 +1,25 @@
+#![feature(format_args_nl)]
+
+pub use logging::*;
+pub use misc::*;
+
+mod logging;
+mod misc;
+
+#[cxx::bridge]
+pub mod ffi {
+    #[derive(Copy, Clone)]
+    pub enum LogLevel {
+        Error,
+        Warn,
+        Info,
+        Debug,
+    }
+
+    extern "Rust" {
+        fn log_with_rs(level: LogLevel, msg: &str);
+        fn exit_on_error(b: bool);
+        fn set_log_level_state(level: LogLevel, enabled: bool);
+        fn cmdline_logging();
+    }
+}