* ui: Add data-source component and related services (#6486)
* ui: Add data-source component and related services:
1. DataSource component
2. Repository manager for retrieving repositories based on URIs
3. Blocking data service for injection to the data-source component to
support blocking query types of data sources
4. 'Once' promise based data service for injection for potential
fallback to old style promise based data (would need to be injected via
an initial runtime variable)
5. Several utility functions taken from elsewhere
- maybeCall - a replication of code from elsewhere for condition
calling a function based on the result of a promise
- restartWhenAvailable - used for restarting blocking queries when a
tab is brought to the front
- ifNotBlocking - to check if blocking is NOT enabled
* Move to a different organization based on protocols
* Don't call open twice when eager
* Workaround new ember error for reading and writing at the same time
* Add first draft of a README.mdx file
You can potentially close an EventSource before its first tick by
immediately setting the readyState to a non-open state. Therefore it
never opens.
Calling `open` will then open it.
'Open' fits better than 'reopen' when taking the above into account
- Maintain http headers as JSON-API meta for all API requests (#4946)
- Add EventSource ready for implementing blocking queries
- EventSource project implementation to enable blocking queries for service and node listings (#5267)
- Add setting to enable/disable blocking queries (#5352)
