Introduce new Benchmark class and Patcher

This MR covers most of #151 (closed)

In detail, it includes:

• Introduction of the new benchmark and patcher types defined in #151 (closed), closes #142 (closed)
• Refactoring of many components, e.g. the K8s manager according to #151 (closed), closes #143 (closed)
• Allow setting arbitrary environment parameters, close mostly #98 (closed)
• Load configuration based on two YAML files, this closes the first part of #137 (closed)
• Allow to set Kafka and Zookeeper service names, closes #122 (closed)
• Usage of the new Workload Generator, closes #157 (closed)

TODOs before ready to merge:

• Remove hard coded parts, e.g. type of instances and loads, which is not actually loaded by configuration, see Resource and LoadDimension class in kotlin.
• Change ("patching") methods from the Kubernetes managers to actual patchers to fully resolve #143 (closed)
• Test everything inside Kubernetes.
• Clean up, remove old classes and benchmark types
• Add a NodeSelector Patcher to resolve #93 (closed)
• Maybe we need more Patchers to fully resolve #98 (closed), if more of the non environment parameters (such as K8s ResourceLimits, K8s Labels, ..) must be configurable (@she ?)
• Make namespace configurable moved to #155 (closed)

Feel free to expand this description and add TODOs

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

@@ -7,8 +7,8 @@ import kotlin.properties.Delegates
 class BenchmarkContext() {
     lateinit var name: String
     lateinit var benchmark: String
-    lateinit var loads: List<Int>
-    lateinit var resources: List<Int>
+    lateinit var load: LoadDefinition
+    lateinit var resources: ResourceDefinition
     lateinit var slos: List<Slo>
     lateinit var execution: Execution
     lateinit var configOverrides: List<ConfigurationOverride>
@@ -24,4 +24,14 @@ class BenchmarkContext() {
         lateinit var sloType: String
         var threshold by Delegates.notNull<Int>()
     }
+
+    class LoadDefinition() {
+        lateinit var loadType: String
+        lateinit var loadValues: List<Int>
+    }
+
+    class ResourceDefinition() {
+        lateinit var resourceType: String
+        lateinit var resourceValues: List<Int>
+    }
 }