New version not available which includes simple filter

[sprd-vigop]

Hi,

I could see simple filters being implemented in this commit 4 months ago
48a3edb , the latest version in 0.2.5 which doesnt include this feature.

I wanted to check if this is not released till now due to some issues or if its simply just missed

Thanks

[janbuchar]

Hi, I will try to review and merge #76 in the following week and then make a release.