Add `transaction.data` to `contexts.trace.data`

[cleptric]

Closes #863

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 83.64%. Comparing base (6019770) to head (de309ba). Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #864   +/-   ##
=======================================
  Coverage   83.64%   83.64%           
=======================================
  Files          50       50           
  Lines        5159     5162    +3     
=======================================
+ Hits         4315     4318    +3     
  Misses        687      687           
  Partials      157      157           

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