Enable to define ignoreCves for each container in config.toml

IgnoreCVEs can not be set for each container in the current implementation.

```bash
[servers]

[servers.172-31-4-82]
host         = "172.31.4.82"
user        = "ec2-user"
keyPath     = "/home/username/.ssh/id_rsa"
containerType = "docker"
containersIncluded = ["${running}"]

[servers.172-31-4-82.containers.dockerA]
ignoreCves = ["CVE-2016-6314"]

```