Enhance the way to configure overrides

...quarkus/src/main/kotlin/theodolite/benchmark/Benchmark.kt

.../src/main/kotlin/theodolite/benchmark/BenchmarkContext.kt

...c/main/kotlin/theodolite/benchmark/KubernetesBenchmark.kt

...kus/src/main/kotlin/theodolite/benchmark/TestBenchmark.kt

...src/main/kotlin/theodolite/execution/BenchmarkExecutor.kt

...main/kotlin/theodolite/execution/BenchmarkExecutorImpl.kt

.../kotlin/theodolite/execution/TestBenchmarkExecutorImpl.kt

...rkus/src/main/kotlin/theodolite/patcher/PatcherManager.kt

.../src/main/kotlin/theodolite/util/ConfigurationOverride.kt

.../main/kotlin/theodolite/util/OverridePatcherDefinition.kt

theodolite-quarkus/src/main/resources/yaml/testContext.yaml