Add vim

source (vim)
https://sites.google.com/site/fudist/Home/vim-nihongo-ban/android-vim-build

cp vim libs/armeabi/libvim.so

source (diff, grep)
https://sites.google.com/site/fudist/Home/vim-nihongo-ban/android-vim-build/android-ndk-cross-compile

cp grep libs/armeabi/libgrep.so
cp diff libs/armeabi/libdiff.so