Poison specific functions
Change some header inclusion order
Disable poisoning for Release build
Poison only .git builds
Fix bug #9874 where MRWs showed in purple
As it turns out the 270cw rotation was wrong. Made the code more explicit as to what it is doing with the three flip bits.
Merge pull request #508 from pedrocr/fix-purple-mrw

Fix bug #9874 where MRWs showed in purple
Merge pull request #507 from LebedevRI/poison

Poison specific (unsafe) std functions
Pixelpipe rework: allow iops specify when to collect histogram (before/after process) and from what pipe compute it
Rework pixelpipe rework: no need for additional histogram collect points