init script option to submit pod info to solid community registry

We discussed it today during Solid Community Call, actually @jaxoncreed suggested it could go into init script.

I think to get started we can just have a private registry managed by solid community (just few people having access to data). Minimal data I would see needed:

• server-uri
• support-email

Later it can act as seed for public solid providers directory, for now it would at lest give community some notion of how many pods got deployed out there and contact list where we could now and then send out a survey requesting feedback about their deployments.

首先定位 init 脚本，并检查 deployment 选项是如何定义的。明确私有 registry 的 endpoint 和提交行为，然后确定如何收集和传输 server-uri 与 support-email。完成标准是：init 脚本中的 opt-in 选项可以将这些字段提交到 Solid Community registry。