Add rerun_except crate to prevent building when .asm files are changed

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

build.rs

@@ -1,6 +1,7 @@
 use cfgrammar::yacc::YaccKind;
 use lrlex::LexerBuilder;
 use lrpar::{CTParserBuilder};
+use rerun_except::rerun_except;
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let lex_rule_ids_map = CTParserBuilder::new()
@@ -9,5 +10,9 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     LexerBuilder::new()
         .rule_ids_map(lex_rule_ids_map)
         .process_file_in_src("vm/obj/syn/lexer.l")?;
+    rerun_except(&[
+        "examples/*.asm",
+        "tests/*.asm",
+    ]).unwrap();
     Ok(())
 }