Stop throwing unnecessary errors with adding annotations, metadata, errors

[wparad]

Description of changes:
Adding annotations, metadata, and errors with malformed data, will be logged as an error instead of hard crashing the caller. XRay Segments are not production critical code and therefore should never throw an exception when it can be avoided. This changes default values and keys to something xray can handle, but won't crash the caller.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[NathanielRN]

Thanks for this change @wparad! It looks very useful, and I agree with you that the X-Ray SDK should not throw exceptions to the user's app after the initial initialization stage. This is the same philosophy follows with the OTel JS Contrib project which supports X-Ray :)

Would you have bandwidth to fix the tests so we can get this merged?

[codecov-commenter]

Codecov Report

Merging #467 (99b25dd) into master (7283182) will decrease coverage by 0.15%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #467      +/-   ##
==========================================
- Coverage   82.74%   82.58%   -0.16%     
==========================================
  Files          36       36              
  Lines        1744     1751       +7     
==========================================
+ Hits         1443     1446       +3     
- Misses        301      305       +4     

Impacted Files	Coverage Δ
lib/segments/segment.js	81.13% <0.00%> (-0.92%)	⬇️
lib/segments/attributes/subsegment.js	78.80% <0.00%> (-0.79%)	⬇️

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[wparad]

@NathanielRN done!

[willarmiros]

Please note that my comments still apply as well :)

[wparad]

Please note that my comments still apply as well :)

@willarmiros, there are no comments on this PR that I can see.

[willarmiros]

Ah! That's because they were still pending :)

[willarmiros]

LGTM! Thanks