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/roles/common/tasks/main.yml

@@ -0,0 +1 @@
+- debug: msg="this is a task from the common role"

test/samples/roles/role_a/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+- common

test/samples/roles/role_a/tasks/main.yml

@@ -0,0 +1 @@
+- debug: msg="this is a task from role A"

test/samples/roles/role_b/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+- common

test/samples/roles/role_b/tasks/main.yml

@@ -0,0 +1 @@
+- debug: msg="this is a task from role B"

test/samples/roles/test_become_r1/meta/main.yml

@@ -0,0 +1 @@
+allow_duplicates: yes

test/samples/roles/test_become_r1/tasks/main.yml

@@ -0,0 +1 @@
+- command: whoami

test/samples/roles/test_become_r2/meta/main.yml

@@ -0,0 +1,3 @@
+allow_duplicates: yes
+dependencies:
+  - test_become_r1

test/samples/roles/test_become_r2/tasks/main.yml

@@ -0,0 +1 @@
+- command: whoami

test/samples/roles/test_role/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+  - test_role_dep

test/samples/roles/test_role/tasks/main.yml

@@ -0,0 +1,3 @@
+- debug: msg="here we are in the role, foo={{foo}}"
+- fail:
+  when: foo != "bar"

test/samples/roles/test_role_dep/tasks/main.yml

@@ -0,0 +1 @@
+- debug: msg="here we are in the role dependency"