refactor: move tv/samples to tv/tv-material

tv/samples just showcases sample usages of components from
tv/tv-material package. Moved it inside tv/tv-material to limit the
scope.

Test: ./gradlew -p tv assembleDebug assembleAndroidTest

Change-Id: I55ad046ff77e21602d001f04367abd26bb849d90
diff --git a/tv/tv-material/build.gradle b/tv/tv-material/build.gradle
index a347f5a..e471d39 100644
--- a/tv/tv-material/build.gradle
+++ b/tv/tv-material/build.gradle
@@ -75,5 +75,5 @@
     mavenVersion = LibraryVersions.TV_MATERIAL
     inceptionYear = "2022"
     description = "build TV applications using controls that adhere to Material Design Language."
-    samples(project(":tv:tv-samples"))
+    samples(project(":tv:tv-material-samples"))
 }