Add a kernel crash function, add a timer using the timer interrupt and

set PIT interval to 1000hz, use a vector inside Framebuffer, remove
without_interrupts from the framebuffer and serial console, move to
usize on primitives, add date at boot and turn on multithreading, add a
boot animation and add a test_performance function with the new timer

kernel/src/util.rs

@@ -1,3 +1,4 @@
+use crate::{driver::timer::TIMER, println};
 use spin::{Mutex, MutexGuard};
 
 pub struct LinkedNode {
@@ -34,3 +35,10 @@ impl<A> Locked<A> {
         self.inner.lock()
     }
 }
+
+pub fn test_performance<F: FnOnce()>(function: F) {
+    let start = TIMER.now();
+    let ret = function();
+    println!("took {} ms", (TIMER.now() - start).elapsed());
+    ret
+}