Fix some createdump issues (#40687)

Fix some createdump issues (#40687)

 Fix some createdump issues

Fix still generating dump with COMPlus_DbgEnableMiniDump=0 on Windows

Start adding coredump pattern to dump names.  Supported format characters:

  %%  A single % character.
  %d  PID of dumped process (for backwards createdump compatibility).
  %p  PID of dumped process.
  %P  PID of dumped process.
  %e  The process executable filename.
  %E  The process executable filename.
  %h  Hostname return by gethostname().
  %t  Time of dump, expressed as seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).