tcctools.c: integrate tiny_libmaker/_impdef

usage:
    tcc -ar [rcsv] lib files...
    tcc -impdef lib.dll [-v] [-o lib.def]

also:
- support more files with -c: tcc -c f1.c f2.c ...
- fix a bug which caused tcc f1.c f2.S to produce no asm
- allow tcc -ar @listfile too
- change prototype: _void_ tcc_set_options(...)
- apply -Wl,-whole-archive when a librariy is given
  as libxxx.a also (not just for -lxxx)

tests/tcctest.c

@@ -3431,7 +3431,7 @@ void builtin_test(void)
     i = sizeof (__builtin_choose_expr (1, ll, s));
     printf("bce: %d\n", i);
     i = sizeof (__builtin_choose_expr (0, ll, s));
-    printf("bce: %d\n", i);
+    printf("bce: %d\n", i);
 
     //printf("bera: %p\n", __builtin_extract_return_addr((void*)43));
 }