Wand v1.0.7

Release build.

Features
- Adds the Wand item.
- !wand gives the player a wand.
- Left-click block sets position 1.
- Right-click/use block sets position 2.
- !set block hollow fills the selection.
- Supports hollow mode.
- Supports block names with or without minecraft: prefix.
- Includes a 32000 block safety cap.
- Future versions can raise the cap by 1000 blocks after testing.
- Includes custom item texture and pack icons.
- Adds /scriptevent wand:give and /scriptevent wand:set block hollow as command fallbacks.
- Adds stronger right-click pos2 detection using before and after block interaction events.
- Fixes hollow mode to match /fill hollow by clearing inside blocks to air.
- Makes hollow reporting explicit: shell blocks changed and inside air blocks changed.
- Fixes hollow mode for flat 2D selections by ignoring axes with no thickness.
- Removes debug spam while keeping pos1 and pos2 selection messages.
