**DRAFT** DynamoDB Relationships

[tippmar-nr]

Adds support for building the ARM for DynamoDB, but (currently) doesn't add the cloud.resource_id attribute to the right segment. This PR depends on additional work being done in #2901 and #2924.

A notable change in this PR is that the AWS Account ID is cached per instance of the ClientConfig object, which is a property of AmazonServiceClient and is passed as a property in every pipeline invocation.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.77%. Comparing base (4537d5d) to head (d98fc3e).

Additional details and impacted files

@@                            Coverage Diff                            @@
##           feature/invoke-lambda-instrumentation    #2923      +/-   ##
=========================================================================
+ Coverage                                  81.66%   81.77%   +0.11%     
=========================================================================
  Files                                        467      470       +3     
  Lines                                      29724    29873     +149     
  Branches                                    3308     3320      +12     
=========================================================================
+ Hits                                       24274    24429     +155     
+ Misses                                      4657     4653       -4     
+ Partials                                     793      791       -2     

Flag	Coverage Δ
Agent	82.73% <100.00%> (+0.11%)	⬆️
Profiler	73.13% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ions/NewRelic.Agent.Extensions/Caching/LRUCache.cs	100.00% <100.00%> (ø)
...ns/NewRelic.Agent.Extensions/Caching/LRUHashSet.cs	100.00% <100.00%> (ø)
...Relic.Agent.Extensions/Caching/WeakReferenceKey.cs	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes