[LDCad] LDCAD about Add custom parts

[Roland Melkert]

i got a idea f12 would force ldcad to dump its cache and basically reload it

Reloading the cache isn't a simple thing to implement in the current code.

There are thousands of objects referring to it during runtime. It would become an access violation minefield.

The same thing happened when I decided to implement ldraw file reloading at a much too late stadium