v0.7.0

Upgrades:

• Upgraded many packages (@micheleangioni/node-messagebrokers, helmet, mongoose, validator...)
• Upgraded many dev packages (Jest to v26...)
• Fixed UserRepo, now using async / await in all methods
• Upgraded TypeScript to v3.9, targeting now es2019
• Upgraded eslint to v7
• Added .vscode to .gitignore

Bug fixes:

• Fixed a bug when building the application