TODO/2.2/Code Cleanup

Some code cleanup is needed as well as finishing some currently unfinished features.

• [open] remove baseCurrent assignments from every place except base selecting (taken by Zenerka)
  • See also TODO/2.2/baseCurrent for a summary on the situation and some hints on what is needed.

src/client/cl_aircraft.c:                                                       baseCurrent = aircraft->homebase;
src/client/cl_main.c:           baseCurrent = &gd.bases[0];
src/client/cl_popup.c:  baseCurrent = aircraft->homebase;
src/client/cl_basemanagement.c: baseCurrent = &gd.bases[baseID];
src/client/cl_basemanagement.c:                 baseCurrent = &gd.bases[baseID];
src/client/cl_basemanagement.c:                 baseCurrent = &gd.bases[0];
src/client/cl_basemanagement.c:         baseCurrent = &gd.bases[baseID];
src/client/cl_basemanagement.c:         baseCurrent = b;
src/client/cl_campaign.c:       baseCurrent = aircraft->homebase;
src/client/cl_campaign.c:       baseCurrent = aircraft->homebase;
src/client/cl_campaign.c:       baseCurrent = AIR_AircraftGetFromIdx(gd.interceptAircraft)->homebase;
src/client/cl_campaign.c:       baseCurrent = NULL;
src/client/cl_basesummary.c:    baseCurrent = NULL;

• [done] replace int baseidx in Alien Containment function calls with base pointer (taken by Zenerka)
• [done] handling a mission, the aircraft should be selected by comparing aircraft->mission with selected mission - remove every baseCurrent, baseCurrent->aircraftCurrent usage (see baseCurrent for more), fix team selection (taken by Zenerka)
• [open] clean a mess with assigning employees to buildings and removing them
  • [open] cl_basemanagement.c/B_HireForBuilding()
  • [open] cl_employee.c/E_AssignEmployeeToBuilding() (currently commented out)
  • [open] cl_employee.c/E_RemoveEmployeeFromBuilding()
• [open] destroying building (cl_basemanagement.c/B_BuildingDestroy()) should:
  • [done] update capacities
  • [open] remove/update personel from building (in case of worker or scientist)
  • [done] remove/update aliens for B_ALIEN_CONTAINMENT (taken by Zenerka)
  • [open] remove/update items for B_STORAGE - not so easy, because equipment being used by soldiers in teams is still stored in storage too; that needs to be changed first, see Inventory to team assignment TODO entry
  • [done] remove antimatter for B_ANTIMATTER
• [done] rename all armor variables to armour - hoehrer started this already
• [done] (try to) merge nameCat and teamDesc arrays - store all info about given character type in one array
• [done] merge craftitems with struct objDef_s - thanks to that no new code will be needed for producing, purchasing, transfering, selling, disassembling, storing subsystems