vf_il: update to AVFrame
vf_blackframe: update to AVFrame
vsrc_mptestsrc: update to AVFrame

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
vf_yadif: fix compile
vf_tinterlace: update to AVFrame
vf_noise: update to AVFrame
lavfi/alphaextract: switch to AVFrame.
lavfi/removelogo: switch to AVFrame.