treewide: set up Hotpath for benchmarking individual allocations

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I0351e5753996e6d0391fc9e2f329878a6a6a6964

src/colors.rs

@@ -43,6 +43,7 @@ pub static COLORS: LazyLock<Colors> = LazyLock::new(|| {
 });
 
 #[must_use]
+#[cfg_attr(feature = "hotpath", hotpath::measure)]
 pub fn print_dots() -> String {
   format!(
     "{}  {}  {}  {}  {}  {}  {}",