las3_pub / predictable_parallel_patterns

This was highlighted as an issue in the steal_work routine, as frequent calls to virtual functions are expensive.

Please note that this does currently not execute, but only removed the 'old aspecs'. We are still missing launching the root fork_join task.

Add Parallel For.

See merge request !10

# Conflicts:
#	PERFORMANCE.md
#	lib/pls/CMakeLists.txt
#	lib/pls/include/pls/internal/scheduling/fork_join_task.h

This is required to correctly execute multiple, consecutive wait_for_all calls in one fork_join_sub_task.

This resulted from an merge gone wrong.

Merge: Lock Free Deque

See merge request !9