Added ios_test_runner import.

Author: ShadowBearVR

modules/Models/BUILD.bazel

@@ -1,5 +1,6 @@
 load("@build_bazel_rules_apple//apple:ios.bzl", "ios_unit_test")
 load("@build_bazel_rules_swift//swift:swift.bzl", "swift_library")
+load("@build_bazel_rules_apple//apple/testing/default_runner:ios_test_runner.bzl", "ios_test_runner")
 load("//tools:shared.bzl", "versions")
 
 # Code