Update telemetry schema with workloads

[kwapik]

The goal of this ticket is to update the data format which we're sending in logs and traces.

To do that the following changes should be applies to the metricsprocessor:

1. Add workloads and dropping_workloads attributes with format:

   policy_name:<policy_name>,component_index:<component_index>,workload_index:<workload_index>,policy_hash:<policy_hash>
   

2. Change concurrency_limiters and dropping_concurrecy_limiters format to:

   policy_name:<policy_name>,component_index:<component_index>,policy_hash:<policy_hash>
   

3. Change flux_meters format to:

   <flux_meter_name>
   

4. Add classifiers attribute with format (depends on Add classifiers to flowcontrolv1.CheckResponse #268):

   policy_name:<policy_name>,classifier_index:<classifier_index>
   

Useful links:

1. Function in metricsprocessor which needs to be changed