Pixelpipe rework: allow iops to specify from what pipe to compute histogram
Pixelpipe rework: move histogram_collect*() calls before process*()
Deduplicate dt_dev_pixelpipe_type_t definition
highlights: fix nan issue with dead pixels.
Updated Dutch translation
Merge pull request #514 from MRIG/master

Updated Dutch translation
blending: fix clamping in blend mode coloradjustment

this should fix #9882
Merge pull request #489 from LebedevRI/pixelpipe-histogram-rework

Pixelpipe rework: histogram collection point