Support client/response filters for HTTP clients

[symphony-enrico]

NOTE: This PR reinstates the changes from #542, which were later reverted in this commit. The original PR was reverted because its main purpose — the Agentless project — was canceled. However, I’m now reviving it, and moreover the ability to add filters could be valuable for various current and future use cases.

The HTTP clients implementations supported by the BDK both support registering custom filters to intercept requests and responses. This can be useful to add custom logic, trace requests, provide metrics or support use cases such as Agentless.

Using the SymphonyBdkBuilder it is now possible to register such filters.

For instance:

final SymphonyBdk bdk = new SymphonyBdkBuilder()
        .apiClientFactory(new ApiClientFactory(config){
          @OverRide
          protected ApiClientBuilder getApiClientBuilder(String basePath, BdkClientConfig clientConfig) {
            ApiClientBuilder apiClientBuilder = super.getApiClientBuilder(basePath, clientConfig);
            apiClientBuilder.addFilter(new JerseyCryptoFilter(config));
            return apiClientBuilder;
          }
        })
        .config(config)
        .build();

The concrete implementation is specifc to each HTTP client, this is why the API takes a generic object.

[thibauult]

LGTM 👍