Change CMake files to simplify them.

Also disable dorayme.cpp for now as it if wrongly taken in the rayonnement library.

source/main.cpp

@@ -22,7 +22,7 @@ static int l_sin (lua_State *L) {
     lua_pushnumber(L, sin(d));  /* push result */
     return 1;  /* number of results */
 }
-
+#if 0
 int main(int argc, char *argv[])
 {
     char buff[256];
@@ -48,4 +48,5 @@ int main(int argc, char *argv[])
 
     lua_close(L);
     return 0;
-}
+}
+#endif