This allows users to consume the install functionality but also install
to other areas instead of the managed `/opt` dir.
```bash
> ctr install --path /usr/local
```
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Some images like `criu` will have extra libs that it requires. This
adds lib support via LD_LIBRARY_PATH and InstallOpts
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>