libjpeg & libjpeg-turbo: differentiate tools packages' name

Signed-off-by: Ian Leonard <antonlacon@gmail.com>
libjpeg & libjpeg-turbo: add a PROVIDES:= jpeg-library

Signed-off-by: Ian Leonard <antonlacon@gmail.com>
misc: adjust DEPENDS to new jpeg-library PROVIDE

Signed-off-by: Ian Leonard <antonlacon@gmail.com>
opus: add variant using integer math

Signed-off-by: Ian Leonard <antonlacon@gmail.com>
ffmpeg: add libopus support

Signed-off-by: Ian Leonard <antonlacon@gmail.com>