drivers::simple0_tests: out file data became optional.
On branch master
Your branch is up-to-date with 'github/master'.

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

	modified:   src/drivers/simple0_tests.cpp
	modified:   src/drivers/simple0_tests.hpp

Untracked files:
  (use "git add <file>..." to include in what will be committed)

	shadow_test.zip
	test.zip
generators::legacy0 implementation.