Pre-create dir path with dummy file if required

Example:
  Key: first:second:third:fourth
  * dirdepth = 0
    Nothing will be be done.
  * dirdepth = 1
    first dir will be created with second.yml file.
  * dirdepth = 2
    first/second dir will be created with third.yml file.
  * dirdepth = 3
    first/second/third dir will be created with fourth.yml file.
  * dirdepth = 4
    first/second/third/fourth dir will be created.

Change-Id: I6f70bf4107795e5776a23062500f90fbd06c69af
Related-PROD: https://mirantis.jira.com/browse/PROD-33875
1 file changed