1.17 cherry picks

[mms0316]

Brought fixes from master branch:

• Task Scheduler: add missing synchronized block
• Task Scheduler: fix calling stop() twice
• Easy Place: uses mixins (interactBlock, interactItem + syncSelectedSlot, doItemUse + TAIL) and isHandlingEasyPlace to stop extra block placements and fail message spams (should fix GH #434)

Brought a feature from master branch:

• Pick block: Add number ranges in pickBlockableSlots config

Removed the config EASY_PLACE_VANILLA_REACH in favor of mc.interactionManager.getReachDistance()

Note: this does not bring fixes to underwater slabs, refactors to EasyPlaceUtils or changings in hooks for SchematicUtils / SchematicEditUtils from master branch