Filter services marketplace by tag and user crafted queries

[gberche-orange]

Detailed Description

As the marketplace grows, it becomes useful for users to filter services by tags in the services marketplace page, and potentially other fields such as provider name, or free plans.

Context

Why is this change important to you? How would you use it?

This enables service authors to publish granular services (e.g. apis) which will includes 100s of services in the marketplace.

Users can then filter only services from a a set of criteria (e.g. single provider), and can share permalinks to the marketplace page with such filters.

Possible Implementation

A possible UX could be to have currently displayed tags become clickeable, which would trigger adding the tag to a list of filters such as "tag:api" "tag:sql"

This could potentially be extended in the future with filters against additional fields such as "provider:x" or "plan.free:true"

See screenshots below from kibana filters as an inspiration:

• display of currently active filters
  
• disabling / editing of currently active filters:
  
• inserting a new filter using a query syntax