Split testutils-espresso into its own dependency

Rather than have testutils-runtime depend
directly on all of Espresso, move those testutils
into their own module that can be included only
by the modules that need them.

Also removes the no longer used
OrientationChangeAction.

Test: ./gradle bOS
Change-Id: Iccc3d877b7e8600f2143d6479b98da99c8ef0cb5

diff --git a/settings.gradle b/settings.gradle
index 98363ce..f470d36 100644
--- a/settings.gradle
+++ b/settings.gradle

@@ -279,6 +279,7 @@
 
 includeProject(":internal-testutils-common", "testutils/testutils-common")
 includeProject(":internal-testutils-runtime", "testutils/testutils-runtime")
+includeProject(":internal-testutils-espresso", "testutils/testutils-espresso")
 includeProject(":internal-testutils-ktx", "testutils/testutils-ktx")
 
 /////////////////////////////