ebpf windows plugin + e2e comp tests

[vpidatala94]

ebpf windows plugin + e2e comp tests

Changes being introduced.

test\e2e\tools\event-writer : this is an test tool that helps generating mock trace and drop events using a BPF program based on customer inputs. The tools consists a BPF program and C++ Application that is used to load/unload and attach/update filter
Tool is intentionally building only for Release config variant for x64.

ebpf-for-windows plugin in pkg/plugin/ebpf-for-windows consists of changes to capture advanced metrics using Hubble parser for trace, drop changes. There are additional changes in the plugin to update retina metadata.

Additional changes in E2E with jobs
a. to load program, maps and pin it because retina ebpfwindows plugin expects cilium maps pre-loaded.
b. to validate windows BPF metrics advanced + basic.

1. collect pre-test basic metrics
2. create a non-hpc-pod
3. capture ifindex, interface of that non-hpc-pod and attach the BPF program to that interface
4. set filter for event-writer to trace and initiate curl from the non-hpc-pod
5. capture post-test BPF program and check if the metrics have increased.
6. check for the presence of advanced metrics
   c. to unpin BPF program, maps at the end of tests

Additional changes made in retina source to enable ebpfwindows plugin, made changes in retina win config-map to enable pod-level metrics + annotations << to mitigate a bug in retina that causes retina win daemon-sets to not cause a rollout during helm upgrade

[kumarvin123]

Please add a comment for these hardcoded 128 bytes packet length.