KpiComposer: Read Kafka stream and extracts the metric value as per configured KPIs.

scripts/run_tests_locally-kpi-composer.sh

scripts/run_tests_locally-kpi-manager.sh

src/kpi_manager/service/KpiValueComposer.py

src/kpi_manager/tests/test_kpi_composer.py

src/telemetry/backend/service/TelemetryBackendService.py

src/telemetry/backend/tests/testTelemetryBackend.py

.../frontend/service/TelemetryFrontendServiceServicerImpl.py