Add wstunnel to wishlist

[yunohost-bot]

Add wstunnel to wishlist

Proposed by Proteus

Website: https://github.com/erebe/wstunnel
Upstream repo: https://github.com/erebe/wstunnel
License: erebe/wstunnel@ae54cd5
Description: used to circumvent strict firewalls or obfuscate vpn tunnel

• Confirm app is self-hostable and generally makes sense to
  possibly integrate in YunoHost
• Confirm app's license is opensource/free software
  (or not-totally-free-upstream, case by case TBD)
• Description describes clearly and concisely what the app is/does

Regular Contributors and Admins can comment with !reject <reason> to
remove the proposed app from the wishlist and put it in the rejectedlist
with the appropriate reason.

[tituspijean]

The license contains:

Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

Even though a YunoHost package is not a "product", I think we should check upstream first, because the manifest will use their name.