Moving samples/ out of the root into test/

Since samples/ is used for v2 testing, it fits better into the existing test/ structure.

test/samples/test_blocks_of_blocks.yml

@@ -0,0 +1,17 @@
+- hosts: localhost
+  gather_facts: no
+  tasks:
+  - block:
+    - block:
+      - block:
+        - block:
+          - debug: msg="are we there yet {{foo}}?"
+        always:
+        - debug: msg="a random always block"
+      - fail:
+      rescue:
+      - debug: msg="rescuing from the fail"
+      when: not skip_me|default(False)
+    - debug: msg="i am the last task"
+    vars:
+      foo: bar