CfService.getVolumes() is package private and not accessible outside of the `io.pivotal.cfenv.core` package.

[KaiHofstetter]

Describe the bug

I'm trying the read the volumes as described in the README:

CfEnv cfEnv = new CfEnv();
List<CfVolume> cfVolumes = cfEnv.findServiceByName("nfs1").getVolumes();
String path = cfVolumes.get(0).getPath();

Unfortunately, the CfService.getVolumes() method is package private and is not accessible outside of the io.pivotal.cfenv.core package.

public class CfService {
...
	List<CfVolume> getVolumes() {
		return cfVolumes;
	}
...
}

(see CfService)

I assume this is a bug.

Furthermore, the cfVolumes.get(0).getPath(); returns a Path object and not a String, as shown in the README example.

I would be happy to provide a PR to fix this.

Reproduction steps

Try to compile the example in the README:

CfEnv cfEnv = new CfEnv();
List<CfVolume> cfVolumes = cfEnv.findServiceByName("nfs1").getVolumes();
String path = cfVolumes.get(0).getPath();

Expected behavior

CfService.getVolumes() is public:

public class CfService {
...
	public List<CfVolume> getVolumes() {
		return cfVolumes;
	}
...
}

Additional context

No response