Added BugListSegment to BugListEntry
Hovering a BugListSegment highlights the segment on the board if visible (and shows its inspector)
Assign categories to Bug GameResource
Rename Bug -> BugResource
Rename Weapon -> WeaponResource
BugResource now has definitions for different body part prefabs.
PlacingInput now determines which prefab to use on each cell when placing.
Fixed issues with calculating segment rotation on creation.