build: rebuild if git HEAD changes
build: rebuild if git HEAD changes

Install git hooks which handle cases when git HEAD is changed.
The git hooks just remove config-generated.go file to force
binary rebuild.

Fixes #431.

Signed-off-by: Dmitry Voytik <537f079b47d222820edbaaaee59a4a4f85b56ea1@huawei.com>

clearcontainers/runtime,clearcontainers/runtime,devimc/runtime,devimc/runtime,chavafg/runtime,chavafg/runtime