Add adaptivegrain plugin

Dockerfile

@@ -78,6 +78,15 @@ RUN cd /tmp \
     && cd /tmp/ \
     && rm -rf vs-placebo
 
+RUN cd /tmp \
+    && git clone --depth=1 --recursive https://git.kageru.moe/kageru/adaptivegrain \
+    && cd adaptivegrain \
+    && cargo build --release \
+    && cp target/release/libadaptivegrain_rs.so /usr/lib/x86_64-linux-gnu/vapoursynth/ \
+    && cd .. \
+    && rm -rf adaptivegrain \
+    && rm -rf ~/.cargo
+
 # Runtime dependencies
 RUN apt-get -y install \
         beignet-opencl-icd \