[Cin] Blend Algebra and Program icons

If you want, I created the icons for the new BlendAlgebra/Progam plugins. If Georgy think they are good,... I put them here to use in Cinelerra-GG. In the compressed file there are ALL of them (square and circle). I put here the two square icons as preview. Thank you. IgorBeg blendalgebra.png blendprogram.png