feat: Update the go feature server from Expedia code repo.

[shuchu]

What this PR does / why we need it:

Update the improved Go feature server code from ExpediaGroup/Feast to our code repo.

Which issue(s) this PR fixes:

[shuchu]

cc: @EXPEbdodla

[shuchu]

[Update 10-22-2024] Now it can compile, build and build docker image. All configures in the Makefile under the "#Go SDK & embedded" are working, except the "install-go-ci-dependencies".

The current "install-go-ci-dependencies" is obsoleted. We need to fix it when we setup the integration test for Go feature server.

!!Warning, the current version my not function correctly. need more testing and investigating.

[shuchu]

[Update 10-31-2024]

1. "make test-go" works now
2. DataDog related observability instrumentation code were commented out but not removed. I keep these code and plan to use OTEL to replace them.

[shuchu]

[Update 11/04/2024]

1. The HTTP Registry code is removed as it depends on an external HTTP server as @EXPEbdodla pointed out.
2. The default Registry is File based one now.

[shuchu]

[Update 11-20-2024] 1, about the transformation service endpoint issue, I couldn't find a better solution now since this is a design choice between the "not working" callback function and using Python based transformation gRPC service. As for now, I use a general string to represent the endpoint. Sorry about this. I will spend more time to understand the code and see if we can do it in a better way. cc: @EXPEbdodla @tokoko @franciscojavierarceo

[shuchu]

[Update 11/24/2024]

1. use the feature_store.yaml file as the source of defining Python transformation service. Example:

   # feature_store.yaml file
   feature_store:
   transformation_service_endpoint: "localhost:50051"

@EXPEbdodla @feast-dev/reviewers-and-approvers