Add colour along the wing and sparkle to lobby wings

Both wing designs can colour their points from the spine to the tips
instead of changing colour over time, and a sparkle setting shows only a
share of the points each tick, which also lowers their cost. The angel
and phoenix drawn shapes are removed.

LobbySystem/src/de/steamwar/lobby/LobbySystem.properties

@@ -171,6 +171,8 @@ PARTICLE_PARAM_WING_IMAGE = §fWing shape
 PARTICLE_PARAM_WING_SIZE = §fWing size
 PARTICLE_PARAM_DRAWN_SHAPE = §fShape
 PARTICLE_PARAM_WING_DETAIL = §fPoints per wing
+PARTICLE_PARAM_WING_COLORING = §fColour mode
+PARTICLE_PARAM_WING_SPARKLE = §fSparkle (points shown, %)
 
 PARTICLE_CHOICE_TICKMODE_MOVE = §fWhile moving
 PARTICLE_CHOICE_TICKMODE_ALWAYS = §fAlways
@@ -194,11 +196,11 @@ PARTICLE_CHOICE_VISIBILITY_ONLY_OTHERS = §fOnly others
 PARTICLE_CHOICE_IMAGE_SIMPLE = §fSimple
 PARTICLE_CHOICE_IMAGE_COMPLEX = §fComplex
 PARTICLE_CHOICE_IMAGE_SWORD = §fSword
-PARTICLE_CHOICE_SHAPE_ANGEL = §fAngel
 PARTICLE_CHOICE_SHAPE_BAT = §fBat
 PARTICLE_CHOICE_SHAPE_BUTTERFLY = §fButterfly
 PARTICLE_CHOICE_SHAPE_FAIRY = §fFairy
-PARTICLE_CHOICE_SHAPE_PHOENIX = §fPhoenix
+PARTICLE_CHOICE_COLORING_OVER_TIME = §fChange over time
+PARTICLE_CHOICE_COLORING_ALONG_WING = §fFrom the back to the tips
 
 # Particle types
 PARTICLE_TYPE_DUST = §fDust