Update more HWPs: Knockball, Racer, Construction Mode
Changes:
- New ammo icon for Knockball's baseball bat with ball
- New ammo icon for waypoint placement tool in Racer
- Remove airplane cursor in Racer and Construction Mode
f3e903ace2d3
Make hedgewars frontend not change scheme/weps to Default if script cfg doesn't match a known scheme. That is, will leave on whatever is selected. Also set a bunch of schemes where we don't care what the scheme/weps are to *