Multi env support and Kube client integration

Kube friendly Beta

Package versions supports Kube env

Added:
  - Env type detection
  - New option: --use-env, for selecting env
    when function supports multiple detected envs
  - Updated config loading
  - Each module and command type has supported env check
    and stops execution if it is on unsupported env
  - Functions can support multiple envs
  - Kubernetes dependency
  - Kubenernetes API detection: local and remote
  - Package checking class hierachy for using Salt or Kube
  - Remote pod execution routine
  - Flexible SSH/SSH Forwarder classes: with, ssh,do(), etc
  - Multithreaded SSH script execution
  - Number of workers parameter, default 5

Fixed:
  - Config dependency
  - Command loading with supported envs list
  - Unittests structure and execution flow updated
  - Unittests fixes
  - Fixed debug mode handling
  - Unified command type/support routine
  - Nested attrs getter/setter

Change-Id: I3ade693ac21536e2b5dcee4b24d511749dc72759
Related-PROD: PROD-35811
diff --git a/tests/res/_fake_kube_config.yaml b/tests/res/_fake_kube_config.yaml
new file mode 100644
index 0000000..5311671
--- /dev/null
+++ b/tests/res/_fake_kube_config.yaml
@@ -0,0 +1,19 @@
+apiVersion: v1
+clusters:
+- cluster:
+    certificate-authority-data: U3VwZXIgc2VjcmV0IGZha2UgY2VydGlmaWNhdGUgYXV0aG9yaXR5IQo=
+    server: https://192.168.0.1:6443
+  name: ucp_192.168.0.1:6443_admin
+contexts:
+- context:
+    cluster: ucp_192.168.0.1:6443_admin
+    user: ucp_192.168.0.1:6443_admin
+  name: ucp_192.168.0.1:6443_admin
+current-context: ucp_192.168.0.1:6443_admin
+kind: Config
+preferences: {}
+users:
+- name: ucp_192.168.0.1:6443_admin
+  user:
+    client-certificate-data: U3VwZXIgc2VjcmV0IGZha2UgY2VydGlmaWNhdGUhCg==
+    client-key-data: U3VwZXIgc2VjcmV0IGZha2Uga2V5IQo=
\ No newline at end of file