feat: enhance compiler

- Add comments and test for it
- Add semicolon as required end of some expressions
- Add new arguments parser
- Add multi-file compilation
- Add colors in output

exl/conditions.fzs

@@ -1,16 +1,16 @@
-bool flag = true
+bool flag = true;
 
 if (!flag)
-  printline("buhhh, flag is not true")
+  printline("buhhh, flag is not true");
 else if (2 + 2 >= 4)
 {
-  printline ("two plus two is four")
+  printline ("two plus two is four");
 }
 else {
-  printline("gotcha")
+  printline("gotcha");
 }
 
 {
-  printline("block after")
+  printline("block after");
 }