k8s_cp - a new module for copying files to/from a Pod (#127)

* k8s_cp module

* add documentation for k8s_cp module

* add doc for the new module

* pods should be running

* support for binary, archive and zip file

* sanity

* Delete file.txt

* remove unused

* set back

* Update collection.txt

* Update test_copy_errors.yml

* Update plugins/modules/k8s_cp.py

Co-authored-by: Abhijeet Kasurde <akasurde@redhat.com>

* Update k8s_cp.py

* Update k8s_cp.py

* tar binary requirements

* Update common.py

* Update k8s_cp.py

* Update k8s_cp.py

* replace kind with binary file

* Update test_copy_large_file.yml

* Update plugins/action/k8s_info.py

Co-authored-by: Mike Graves <mgraves@redhat.com>

* Update k8s_info.py

* Update k8s_info.py

* Update k8s_cp.py

Co-authored-by: Abhijeet Kasurde <akasurde@redhat.com>
Co-authored-by: Mike Graves <mgraves@redhat.com>

molecule/default/roles/k8scopy/templates/pods_definition.j2

@@ -0,0 +1,33 @@
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: '{{ pod_with_one_container.name }}'
+spec:
+  containers:
+  - name: '{{ pod_with_one_container.container }}'
+    image: busybox
+    command:
+      - /bin/sh
+      - -c
+      - while true;do date;sleep 5; done
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: '{{ pod_with_two_container.name }}'
+spec:
+  containers:
+  - name: '{{ pod_with_two_container.container[0] }}'
+    image: busybox:1.32.0
+    command:
+      - /bin/sh
+      - -c
+      - while true;do date;sleep 5; done
+  - name: '{{ pod_with_two_container.container[1] }}'
+    image: busybox:1.33.0
+    command:
+      - /bin/sh
+      - -c
+      - while true;do date;sleep 5; done
+