Modify template scheme:

  - [x] Modify Template dir scheme:
    - [x] Add config for location of templates and assets
      - [x] reference config in `/.test-flight` dir in home and in pwd
      - [x] `test-flight-config.json` rename `templateDir` to `AnsibleTemplatesDir`
      - [x] Fix bug in `CheckCommand` where it will not read the error if one exists
            causing nil pointer exceptions.
      - [x] `test-flight-config.json` add `TestFlightAssets`
      - [x] `test-flight-config.json` add `UseSystemDockerTemplates={true|false}`
        - [x] Add `~/.test-flight/system` folder
        - [x] Add `~/.test-flight/user` folder
      - [x] Uncomment out gitignore of `.test-flight` for tests and example