Adds namespace support to the UI:
1. Namespace CRUD/management
2. Show Namespace in relevant areas (intentions, upstreams)
3. Main navigation bar improvements
4. Logic/integration to interact with a new `internal/acl/authorize` endpoint
* ui: Reconciliate ember-data store when records are deleted via blocking
Currently we are barely using the ember-data store/cache, but it will
still cache records in the store even though technically we aren't using
it.
This adds a SyncTime to every record that uses blocking queries so we
can delete older records from the ember-data cache to prevent them
building up
* ui: Add basic timestamp method we can access from tests, fixup tests
Adds a timestamp method that we can access from within tests so we can
test that the SyncTime is being set.
There is probably a better way to do this, but this is also probably the
simplest approach - we are also likely to revisit this at a later date
* ui: Add forking based on service instance id existence
Proxies come in 2 flavours, 'normal' and sidecar. We know when a proxy
is a sidecar proxy based on whether a DestinationServiceID is set.
LocalServiceAddress and LocalServicePort are only relevant for sidecar
proxies.
This adds template logic to show different text depending on this
information.
Additionally adds test around connect proxies (#5418)
1. Adds page object for the instance detail page
2. Adds further scenario steps used in the tests
3. Adds acceptance testing around the instance detail page. Services
with proxies and the sidecar proxies and proxies themselves
4. Adds datacenter column for upstreams
5. Fixes bug routing bug for decision as to whether to request proxy
information or not
This gives more prominence to 'Service Instances' as opposed to 'Services'. It also begins to surface Connect related 'nouns' such as 'Proxies' and 'Upstreams' and begins to interconnect them giving more visibility to operators.
Various smaller changes:
1. Move healthcheck-status component to healthcheck-output
2. Create a new healthcheck-status component for showing the number of
checks plus its icon
3. Create a new healthcheck-info component to group multiple statuses
plus a different view if there are no checks
4. Componentize tag-list
