Step 12 of move of engines: Time to make the changes to support automatic load of dynamic engines.  Make the changes in the main Makefile so the engines are built, but now in the engines/ directory.
Step 12 of move of engines: Time to make the changes to support
automatic load of dynamic engines.  Make the changes in the main
Makefile so the engines are built, but now in the engines/ directory.

Note: The changes in step 12 have all been made by Geoff Thorpe.
Credit where credit is due.

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl