Use a longer timeout

Databrowser: Fix deleting traces with annotation.

Specific to receive setup of pv as an event

disable test due to it being flaky in CI

Phoebus Olog - Use Group icon instead of color

Bug fix save&restore service

In-memory credentials store: a few updates

Logging doc: Details, links to built-in settings

Whhen deleting a trace with annotation, the annotation remained
orphaned. It was on the screen, but would no longer snap to any trace.
It would be saved in the *.plt file with -1 as the item index, and when
later loading the file, there'd be an error dialog.

This fixed the main issue by removing the annotation when deleting the
trace.

Note that there's no complete "undo": Undo will restore the trace, but
for now not recover the annotation for the trace. That would be another
thing to implement as time permits.

Reduce timeouts in ServerClientTest

Uses a single client and server in the test
for all of the pvAccess data types, rather
than one per data type.

CSSTUDIO-1795: Support for In Memory Credentials Caching

CSSTUDIO-1794 Fix bug where the representation of boolean expressions becomes shared in the UI

refactor: provide in-memory backed SecureStore as an available security setting, configurable via the new 'secure_store_target' phoebus security preference.

CSSTUDIO-1794 Fix bug where the representation of boolean expressions in expressions became shared between UI elements in the rules editor.

Add helper class for epics:nt/NTScalar:1.0

Fix the documentation for the upgrade to elastic 8

In timestamp case it could have only a user tag and not secs
and nano elements
In Server Client Test added waits, this is in particular for array types
as they take some time to start up.