[FEATURES] Support non-hostnetwork mode

[xieydd]

What feature you'd like to add: We can support non-hostnetwork mode in v0.7.0.

The goal:

1. both of hostnetwork and container network should be support. Fuse can be in hostnetwork in both mode because it doesn't require any ports.
2. In container network, the work and fuse should be aware of each other in the same node. Consider alluxio.worker.container.hostname and alluxio.worker.hostname.

Why is this feature needed: Currently, alluxio and goosefs components only support hostnetwork mode for performance. It may cause some problem, like port conflict.

In some kubernetes network scenario, performance is almost like hostnetwork ，like cilium or calico BGP, some test result can see https://kinvolk.io/blog/2020/12/egress-filtering-benchmark-part-2-calico-and-cilium/

ping @cheyang