Package KRT file

[jonasdacruz]

This kli command should create a valid KRT package file from a specified folder.

This process should validate that the inside folders structure is right and the krt.yml is valid.

Include a .krtignore file in order to set path patterns to ignore.

Proposed commands:
Create krt file

kli krt create [from-folder-path] [destination-path/file_name.krt]