Signed-off-by: Jan Buethe <jbuethe@amazon.de>

There was a suggestion to use 127 for extending the extension ID space

When ready, change DRED_EXTENSION_ID to the final ID, remove
DRED_EXPERIMENTAL_VERSION completely, and change DRED_EXPERIMENTAL_BYTES
to zero (eventually remove it).

Added required filtering/delay/memory to get continuation

Continuation matches Python code now

saves a few cycles

It's the name that's NULL when an array isn't found

And missing prototypes

Untested