Updated .gitignore for C#
Updated .gitignore for C#

Change-Id: I6c253b0ded187a4945f5e862aae721cf4fda6398

royalharsh/flatbuffers,google/flatbuffers,jekinchen/flatjni,alexames/flatbuffers,jekinchen/flatjni,DavadDi/flatbuffers,google/flatbuffers,pjulien/flatbuffers,jekinchen/flatjni,evolutional/flatbuffers,chenkai036/flatbuffers,stewartmiles/flatbuffers,rw/flatbuffers,alexames/flatbuffers,jekinchen/flatjni,google/flatbuffers,evolutional/flatbuffers,jasonstubbs/flatbuffers,alexames/flatbuffers,evolutional/flatbuffers,chenkai036/flatbuffers,MiCHiLU/flatbuffers,stewartmiles/flatbuffers,DavadDi/flatbuffers,jekinchen/flatjni,pjulien/flatbuffers,endorph-soft/flatbuffers,endorph-soft/flatbuffers,stewartmiles/flatbuffers,endorph-soft/flatbuffers,royalharsh/flatbuffers,endorph-soft/flatbuffers,evolutional/flatbuffers,google/flatbuffers,stewartmiles/flatbuffers,rw/flatbuffers,rw/flatbuffers,royalharsh/flatbuffers,alexames/flatbuffers,stewartmiles/flatbuffers,stewartmiles/flatbuffers,rw/flatbuffers,stewartmiles/flatbuffers,royalharsh/flatbuffers,google/flatbuffers,pjulien/flatbuffers,royalharsh/flatbuffers,evolutional/flatbuffers,stewartmiles/flatbuffers,alexames/flatbuffers,jasonstubbs/flatbuffers,evolutional/flatbuffers,royalharsh/flatbuffers,rw/flatbuffers,alexames/flatbuffers,rw/flatbuffers,rw/flatbuffers,google/flatbuffers,pjulien/flatbuffers,evolutional/flatbuffers,endorph-soft/flatbuffers,endorph-soft/flatbuffers,evolutional/flatbuffers,chenkai036/flatbuffers,alexames/flatbuffers,royalharsh/flatbuffers,MiCHiLU/flatbuffers,stewartmiles/flatbuffers,hgl888/flatbuffers,alexames/flatbuffers,jasonstubbs/flatbuffers,pjulien/flatbuffers,pjulien/flatbuffers,alexames/flatbuffers,DavadDi/flatbuffers,alexames/flatbuffers,alexames/flatbuffers,pjulien/flatbuffers,stewartmiles/flatbuffers,evolutional/flatbuffers,jekinchen/flatjni,MiCHiLU/flatbuffers,jekinchen/flatjni,endorph-soft/flatbuffers,jasonstubbs/flatbuffers,google/flatbuffers,jasonstubbs/flatbuffers,endorph-soft/flatbuffers,rw/flatbuffers,jekinchen/flatjni,stewartmiles/flatbuffers,google/flatbuffers,MiCHiLU/flatbuffers,google/flatbuffers,hgl888/flatbuffers,jekinchen/flatjni,rw/flatbuffers,stewartmiles/flatbuffers,DavadDi/flatbuffers,alexames/flatbuffers,rw/flatbuffers,MiCHiLU/flatbuffers,google/flatbuffers,chenkai036/flatbuffers,evolutional/flatbuffers,google/flatbuffers,chenkai036/flatbuffers,royalharsh/flatbuffers,pjulien/flatbuffers,alexames/flatbuffers,hgl888/flatbuffers,chenkai036/flatbuffers,evolutional/flatbuffers,google/flatbuffers,google/flatbuffers,pjulien/flatbuffers,stewartmiles/flatbuffers,rw/flatbuffers,pjulien/flatbuffers,hgl888/flatbuffers,chenkai036/flatbuffers,jasonstubbs/flatbuffers,hgl888/flatbuffers,google/flatbuffers,chenkai036/flatbuffers,alexames/flatbuffers,chenkai036/flatbuffers,rw/flatbuffers,alexames/flatbuffers,royalharsh/flatbuffers,DavadDi/flatbuffers,DavadDi/flatbuffers,jasonstubbs/flatbuffers,evolutional/flatbuffers,royalharsh/flatbuffers,google/flatbuffers,MiCHiLU/flatbuffers,chenkai036/flatbuffers,endorph-soft/flatbuffers,MiCHiLU/flatbuffers,pjulien/flatbuffers,hgl888/flatbuffers,jasonstubbs/flatbuffers,pjulien/flatbuffers,evolutional/flatbuffers,jekinchen/flatjni,endorph-soft/flatbuffers,MiCHiLU/flatbuffers