Detect and convert nanosecond timestamps for all timestamp parameters

[bidetofevil]

Goal

Use nanosecond fallback for all timestamp parameters. This is because the hosted SDKs are passing in nanosecond time because that's what iOS expects, so we'll just support it on every parameter, rather than just the ones that had previously been in nanoseconds so customers might be using it.

Testing

Added tests in every layer

[bidetofevil]

• Detect and convert nanosecond timestamps for all timestamp parameters #845 👈
• master

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.38%. Comparing base (82666fd) to head (e81184c).
Report is 8 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #845      +/-   ##
==========================================
+ Coverage   81.09%   81.38%   +0.29%     
==========================================
  Files         424      423       -1     
  Lines       11465    11419      -46     
  Branches     1704     1698       -6     
==========================================
- Hits         9297     9293       -4     
+ Misses       1453     1419      -34     
+ Partials      715      707       -8     

Files	Coverage Δ
...droid/embracesdk/internal/spans/EmbraceSpanImpl.kt	86.36% <100.00%> (ø)
...android/embracesdk/internal/spans/EmbraceTracer.kt	96.55% <100.00%> (ø)
...ndroid/embracesdk/internal/spans/InternalTracer.kt	93.65% <100.00%> (+0.31%)	⬆️

... and 25 files with indirect coverage changes