Implement verless create file command

[Dominik Braun]

There should be a command like verless create file my-blog-post.md to create an initialized Markdown file.

[Samyak Bakliwal]

I have few questions about behaviour of this command.

1. Do you want to create a file with some default frontmatter for example

---
Title:
Description:
Date: 2020-10-02
---

2. Should file be created in content folder under current directory or with custom path under current directory ?

[Dominik Braun]

1. Yes, the verless create file command should safe some time for the user, so that he doesn't have to manually create the Front Matter.
2. I'd suggest to directly create it within the content directory.

[Dominik Braun]

Fixed with #182, thanks!