libeplayer3: let neutrino handle bitmap subtitles

Conflicts:
	libeplayer3/container/container_ffmpeg.c
	libeplayer3/container/text_srt.c
	libeplayer3/container/text_ssa.c
	libeplayer3/include/manager.h
	libeplayer3/include/output.h
	libeplayer3/include/subtitle.h
	libeplayer3/manager/audio.c
	libeplayer3/manager/chapter.c
	libeplayer3/manager/dvbsubtitle.c
	libeplayer3/manager/manager.c
	libeplayer3/manager/subtitle.c
	libeplayer3/manager/teletext.c
	libeplayer3/manager/video.c
	libeplayer3/output/output.c
	libeplayer3/output/output_pipe.c
	libeplayer3/output/output_subtitle.c
	libeplayer3/playback/playback.c
	libspark/playback_libeplayer3.cpp
	libspark/playback_libeplayer3.h