feat: keep missing dev but not select

[sunya-ch]

This PR is to fix #206.

change summary

controller

• replace function interfaceChanged with UpdateNewInterfaces to keep old interface info even if the device does not exist anymore. replace old information with new information using the interface name as a primary key to determine updated item.
• do not delete HostInterface even if the node is still alive even if the daemon pod is deleted.

daemon

• check device exist before putting in the selected list (for policy-based selection) except the TEST_MODE is set
• introduce function InitCache to read HostInterface at the beginning to fetch the existing information

testing

• add unit test for UpdateNewInterfaces
• test the following scenario in the real cluster

1. deploy workload pod
2. delete multi-nicd pod and wait until it is recreated
3. delete workload pod

The log from the multi-nicd pod shows that it can first set the cache and can return corresponding list of interface names on deletion.

2025/01/09 04:23:27 set 32 devices cache from hostinterface CR
...
2025/01/09 04:26:13 return: {[(pciAddress values)] [(interface name values)]}