Add ansible.cfg to apps playbooks

The change compared to engine's ansible.cfg is:
 - display_skipped_hosts=False

provisioner-type: bifrost
installer-type: kubespray
deploy-scenario: k8-calico-nofeature

Change-Id: I2ef964e4e914ed7b3140f31cdebe937976387bea
diff --git a/apps/ansible.cfg b/apps/ansible.cfg
new file mode 100644
index 0000000..825438c
--- /dev/null
+++ b/apps/ansible.cfg
@@ -0,0 +1,10 @@
+[ssh_connection]
+ssh_args = -o ControlMaster=auto -o ControlPersist=60m -o ConnectionAttempts=100 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no
+[defaults]
+host_key_checking=False
+deprecation_warnings=False
+localhost_warning=False
+display_skipped_hosts=False
+inventory_ignore_extensions = ~, .orig, .bak, .ini, .cfg, .retry, .pyc, .pyo, .creds
+[inventory]
+ignore_patterns = artifacts, credentials