Routine Cleanup

Signed-off-by: Albert Yu <dev.yufan@gmail.com>
environment cleanup

Signed-off-by: Albert Yu <dev.yufan@gmail.com>
tools setting update

Signed-off-by: Albert Yu <dev.yufan@gmail.com>
repo update

Signed-off-by: Albert Yu <dev.yufan@gmail.com>
cleanup .vimrc before switch to neovim

Signed-off-by: Albert Yu <dev.yufan@gmail.com>
add .nvimrc

Signed-off-by: Albert Yu <dev.yufan@gmail.com>