Integrate OpenTelemetry into OpenDC

This pull request resolves issue #91 by adopting the industry-standard OpenTelemetry standard
for collecting traces and metrics in OpenDC simulations:

* Metrics will now be exposed through OpenTelemetry's metrics API
* `opendc-telemetry` provides complementary code to support
    gathering telemetry in OpenDC.

**Breaking API Changes**
* `opendc-tracer` has been removed.
* `EventFlow` and all usages of it have been removed.
* `opendc-experiments-sc18` has been removed for now, but a 
    suitable replacement will follow soon.

1 files changed, 1 insertions, 1 deletions

diff --git a/simulator/opendc-simulator/opendc-simulator-resources/src/jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt b/simulator/opendc-simulator/opendc-simulator-resources/src/jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt
index 937b6966..f2eea97c 100644
--- a/simulator/opendc-simulator/opendc-simulator-resources/src/jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt
+++ b/simulator/opendc-simulator/opendc-simulator-resources/src/jmh/kotlin/org/opendc/simulator/resources/SimResourceBenchmarks.kt
@@ -71,7 +71,7 @@ class SimResourceBenchmarks {
     fun benchmarkForwardOverhead(state: Workload) {
         return scope.runBlockingTest {
             val provider = SimResourceSource(4200.0, clock, scheduler)
-            val forwarder = SimResourceTransformer()
+            val forwarder = SimResourceForwarder()
             provider.startConsumer(forwarder)
             return@runBlockingTest forwarder.consume(state.consumers[0])
         }