Update actor reminder example.

[philliphoff]

Description

Updates the actor reminder example to resolve an unexpected exception. The actor was attempting to directly return an IActorReminder instance but the underlying type was not intended to be used outside of the actor and was not designed to be serialized. Instead, its properties are now copied to a separate type which is returned to the caller. A couple of other changes were made to the client project to correct assumptions about return types.

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #1177

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (02ab25e) 66.42% compared to head (7e9d5e7) 66.42%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1179   +/-   ##
=======================================
  Coverage   66.42%   66.42%           
=======================================
  Files         171      171           
  Lines        5758     5758           
  Branches      626      626           
=======================================
  Hits         3825     3825           
  Misses       1784     1784           
  Partials      149      149           

Flag	Coverage Δ
net6	66.42% <ø> (ø)
net7	66.42% <ø> (ø)

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