Move fragment/test to fragment/testing

Conform to our other released artifacts by
renaming test to testing.

Test: tests still pass
Change-Id: I181341b0e95ab12e1426e05c5a12dca8eb5aaa91
diff --git a/settings.gradle b/settings.gradle
index 7ed5d05..6062745 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -68,7 +68,7 @@
 includeProject(":exifinterface", "exifinterface")
 includeProject(":fragment", "fragment")
 includeProject(":fragment-ktx", "fragment/ktx")
-includeProject(":fragment-test", "fragment/test")
+includeProject(":fragment-testing", "fragment/testing")
 includeProject(":gridlayout", "gridlayout")
 includeProject(":heifwriter", "heifwriter")
 includeProject(":interpolator", "interpolator")