Initial checkin of spatio-temporal script generator plugin.

It's not compiling yet.

Change-Id: I4f128a5158ee25a04bbbf14757f143342db68b0b
STP plugin seems to be working now, on Linux at least.

I compiled and was able to run it on my machine. I still need
to add in a test and ideally refactor it so that it properly
shares the common code with the co-processing script generator
plugin.

Change-Id: I55a726602837e0e82c2103b07e533e7992d7bc5a
Enabling the temporal plugin by default so that it gets tested.

Change-Id: Ica5fa34d7c7fb2581b93dbd8dcee98dfb778bd3b
Merge topic 'spatio-temporal-parallelism' into next

9c83c7b Enabling the temporal plugin by default so that it gets tested.
6f51609 STP plugin seems to be working now, on Linux at least.
b98356a Initial checkin of spatio-temporal script generator plugin.