add comand to toggle klink hammer high / low arc
changes for arty
it sets the firing arc but it is ignored might be always read from blueprint and thus global?
change to use two weapons and toggle between them behaves oddly on first toggle though
add code to do toggle firing arc to other 3 artillery pieces
finalize script changes for arty
fix bug with seraphim ACU
copy code for multiple trajectories to all arty
Merge branch 'localartyarcs' into IconsForHoverUnits

Conflicts:
	Rose_Com (sent)/hook/units/UEB2303/UEB2303_Script.lua
	Rose_Com (sent)/hook/units/seraphim_land_units.bp