Add back in codegen config

cmake/codegenConfig.cmake.in

@@ -0,0 +1,10 @@
+@PACKAGE_INIT@
+
+# if you have find_package calls, use find_dependency() here with the package
+# that you need to find_package() for. this handles transitive dep finding so
+# your downstream cmake doesnt have to `find_package()` it instead gets done
+# upon package configuration
+
+include("${CMAKE_CURRENT_LIST_DIR}/codegenTargets.cmake")
+
+check_required_components(codegen)