docs: Update RHI test refactoring status

- Mark P0-1 (Shader) and P0-2 (PipelineState) as completed
- Update test coverage matrix
- Add changelog v1.1

engine/src/Components/Component.cpp

@@ -0,0 +1,12 @@
+#include <XCEngine/Components/Component.h>
+#include <XCEngine/Components/GameObject.h>
+
+namespace XCEngine {
+namespace Components {
+
+TransformComponent& Component::transform() const {
+    return *m_gameObject->GetTransform();
+}
+
+}
+}