add support for config context in volumes

[dzove855]

Netbox version	Agent version	Docker API Version
v3.6.9	/	/

Actual Behavior

There is no way to add config context to be mounted inside a container

Desired Behavior

An new type should be added for volumes, which we can use inside the agent to map mount a config context inside a container

Example of use cases:

• you have a config file with for example a nginx configuration, we would use the config context who contains the config and the mount it inside the container where the path should be

Expected structure: Destination path of the file Config context Driver (something like configmap or just configcontext)