Use enums and duration in ExecutionStatus/BenchmarkStatus

Fix #295 (closed), fix #299 (closed)

theodolite/src/main/kotlin/theodolite/execution/operator/BenchmarkStateHandler.kt

@@ -9,10 +9,10 @@ class BenchmarkStateHandler(val client: NamespacedKubernetesClient) :
         crd = BenchmarkCRD::class.java
     ) {
 
-    private fun getBenchmarkResourceState() = { cr: BenchmarkCRD -> cr.status.resourceSetsState }
+    private fun getBenchmarkResourceState() = { cr: BenchmarkCRD -> cr.status.resourceSetsState.value }
 
     fun setResourceSetState(resourceName: String, status: BenchmarkState): Boolean {
-        setState(resourceName) { cr -> cr.status.resourceSetsState = status.value; cr }
+        setState(resourceName) { cr -> cr.status.resourceSetsState = status; cr }
         return blockUntilStateIsSet(resourceName, status.value, getBenchmarkResourceState())
     }