GitLab

Removing synchronisation stuff that is no longer needed.

StackedBuffer are used now, on the clipworkflow's side.

Pool is now "MemoryPool" and a new pool has been created.
It comes with a StackedBuffer class to release buffer that will be
filled by new clipworkflows

A bit more refactoring for the same price.

Width and heigth are handled from config (but changes are not well
handled, and should lead to crash in some cases)

It works, though it will required refactoring to work with resize /
split / everything actually...
It just works for a 10s image, period.

Also, removed all the calls to the default part of the
SettingsManager

Still not functionnal, I think something was lost in the merge...