builder: show timing info in bold; also add a checker summary: line with -stats

vlib/v/util/errors.v

@@ -43,10 +43,10 @@ pub fn (e &EManager) set_support_color(b bool) {
 	unsafe {
 		mut me := e
 		me.support_color = b
-	}        
+	}
 }
 
-fn bold(msg string) string {
+pub fn bold(msg string) string {
 	if !emanager.support_color {
 		return msg
 	}