fix the return of getRowView and import the vector api into examples

Author: elebras1

examples/build.gradle.kts

@@ -18,10 +18,14 @@ java {
 }
 
 tasks.withType<JavaExec> {
-    jvmArgs("--enable-native-access=ALL-UNNAMED")
+    jvmArgs("--enable-native-access=ALL-UNNAMED", "--add-modules", "jdk.incubator.vector")
 }
 
-tasks.compileJava {
+tasks.withType<JavaCompile> {
+    options.compilerArgs.addAll(listOf(
+        "--add-modules", "jdk.incubator.vector"
+    ))
+
     val processorOutput = rootProject.layout.buildDirectory.dir("classes/java/processor").get().asFile
     options.annotationProcessorPath = files(processorOutput) + rootProject.configurations.runtimeClasspath.get()
 }

src/main/java/com/github/elebras1/flecs/Table.java

@@ -264,7 +264,8 @@ public void resetColumn(Class<?> componentClass) {
         }
     }
 
-    public ComponentRowView getRowView(Class<?> componentClass) {
+    @SuppressWarnings("unchecked")
+    public <V extends ComponentRowView> V getRowView(Class<?> componentClass) {
         int col = this.columnIndex(componentClass);
         if (col == -1) {
             return null;
@@ -273,7 +274,7 @@ public ComponentRowView getRowView(Class<?> componentClass) {
         if (columnSeg.address() == 0) {
             return null;
         }
-        ComponentRowView view = this.world.viewCache().getComponentRowView(componentClass);
+        V view = (V) this.world.viewCache().getComponentRowView(componentClass);
         view.setSegment(columnSeg);
         view.setCount(this.count());
         return view;