support 6 vs. 12 and 12 vs. 12 battle drop report
support 6 vs. 12 and 12 vs. 12 battle drop report

- added handlers for enemy combined fleet and both-combined fleet battle
- changed from using ship id from battleresult to use the data received
  before battle, which might contain multiple fleets (one postfixed with "_combined")

Madobe/KC3Kai,c933103/KC3Kai,kololz/KC3Kai,sinsinpub/KC3Kai,kololz/KC3Kai,Madobe/KC3Kai,rephira/KC3Kai,c933103/KC3Kai,Adrymne/KC3Kai,Yukinyaa/KC3Kai,rephira/KC3Kai,KC3Kai/KC3Kai,dragonjet/KC3Kai,kololz/KC3Kai,DynamicSTOP/KC3Kai,DynamicSTOP/KC3Kai,Tibo442/KC3Kai,Javran/KC3Kai,sinsinpub/KC3Kai,reinforce/KC3Kai,KC3Kai/KC3Kai,KC3Kai/KC3Kai,Javran/KC3Kai,reinforce/KC3Kai,DynamicSTOP/KC3Kai,Yukinyaa/KC3Kai,Tibo442/KC3Kai,Madobe/KC3Kai,Tibo442/KC3Kai,dragonjet/KC3Kai,Adrymne/KC3Kai,c933103/KC3Kai,reinforce/KC3Kai,rephira/KC3Kai,Adrymne/KC3Kai,Javran/KC3Kai,sinsinpub/KC3Kai