[refactor] reacharound placement feature

[lonefelidae16]

Refactor the feature of ReachAround placement. Shorter lines, more maintenability.

also resolve #211

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Checklists

Compatibility

• [x] with Reacharound

Block placement

• Non-full block (updated)
  • [x] Dirt Path
  • [x] Soul Sand
  • [x] Mud
  • [x] Chests
  • [x] Chain
  • [x] Stonecutter
  • [x] Grindstone
  • [x] End Rod
  • [x] Bed
  • [x] Stairs, also on half position
  • [x] Slabs, also on upside-down position
  • [x] Fences
  • [x] Walls
  • [x] Cake
  • [x] Amethyst Buds, Cluster
  • [x] Sea Pickle
  • [x] Flower Pot
  • [x] Carpets
  • [x] Trapdoors
  • [x] Lectern
  • [x] Enchanting Table

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Changes

• update ReachAroundPlacement.java

  • removed methods:
  • isNonFullBlock, use Entity#getSteppingPos instead
  • checkReachAroundAndExecute, due to injection method has changed
  • method access modifier has changed:
  • canReachAround: private -> public
  • in method canReachAround:
  • use Entity#isOnGround instead of checking the BlockState
  • use Entity#getSteppingPos instead of BlockPos#down to avoid collision error

• update MinecraftClientMixin.java

  • modify MinecraftClient.crosshairTarget instead of executing the unique method checkReachAroundAndExecute