Hook service support custom header auth

[Ksisu]

Tutelar optionally calls an other application when a user register/login/removed etc. This calls are implemented in the HookService. The other application maybe require authenticating somehow. Currently we support Basic and Escher authentication.

The issue is implementing a third often used auth method: custom header with secret token.

hints:

• it's basically same as the Basic auth
• conf see application.conf:143 com.wanari.tutelar.core.impl.ConfigServiceImpl#getHookConfig com.wanari.tutelar.core.HookService.BasicAuthConfig
• implement the auth method see com.wanari.tutelar.core.impl.HookServiceImpl#authenticator
• write tests, see com.wanari.tutelar.core.impl.HookServiceSpec

[l4ty4k]

Hey, I'd like to pick this issue.

[pogiedoge]

Pls, assign this issue to me.