objdiff-cli diff & report changes, support .splitmeta object section

- Add `objdiff-cli report changes` for diffing two reports
- Unify some click-to-highlight logic between CLI and GUI
- Load .splitmeta section for extra object metadata (original virtual addr, etc)
- More work on objdiff-cli diff

objdiff-cli/src/util/term.rs

@@ -3,13 +3,12 @@ use std::panic;
 pub fn crossterm_panic_handler() {
     let original_hook = panic::take_hook();
     panic::set_hook(Box::new(move |panic_info| {
-        crossterm::execute!(
+        let _ = crossterm::execute!(
             std::io::stderr(),
             crossterm::terminal::LeaveAlternateScreen,
             crossterm::event::DisableMouseCapture
-        )
-        .unwrap();
-        crossterm::terminal::disable_raw_mode().unwrap();
+        );
+        let _ = crossterm::terminal::disable_raw_mode();
         original_hook(panic_info);
     }));
 }