Merge powershell implementation into main repository

[edouard-lopez]

related: edouard-lopez/lesspass-powershell#15

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Goal?

Merge PowerShell implementation into main repository.

What?

• Source code: https://github.com/edouard-lopez/lesspass-powershell/
• Module: https://www.powershellgallery.com/packages/Lesspass/

Why?

• make powershell implementation officially part of the project
• have a simple place to declare bugs

How?

PR should:

• create a directory for powershell implement at root level as ./powershell/
• perserve commits authorship (cc @sctfic)
• merge travis.yml so powershell tests are run by CI
• (optional) publish module with CI/CD (remember publish module foo from directory foo/)

When?

As time allow :)

[guillaumevincent]

👍

[guillaumevincent]

I close this one, reopen when you will start the work