yamllint: Add yamllint job to CI, add yamllint config

Add .yamllint.yml to configure the yamllint usage, should
be used as master yamllint config from other stages also.
Apply small changes to yml files to match yamllint.

BCS 746-000640

.gitlab-ci.yml

 # ---------------------------------------------------------------------------------------
 # Global
 # ---------------------------------------------------------------------------------------
+---
 
 variables:
   # CI_IMAGES_BASEPATH: Environment variable configure in gitlab
@@ -45,6 +46,13 @@ executable:
   script:
     - (! find ! -executable -name "*.py" -exec echo "not executable:"" {}" \; | grep .)
 
+yamllint:
+  stage: analyze
+  timeout: 2m
+  script:
+    - yamllint -c .yamllint.yml .*.yml
+
+
 # ---------------------------------------------------------------------------------------
 # Stage: deploy
 # ---------------------------------------------------------------------------------------

.yamllint.yml

+---
+
+extends: default
+
+rules:
+  line-length:
+    max: 88