Add objects_to_include parameter to unnest_job_summary_data_json_object()

[pbchase]

Add objects_to_include parameter to unnest_job_summary_data_json_object() (See PR #111). Make sure to document the new parameter and update the test.

[pbchase]

Added docs and tests in commit 60771db

[ChemiKyle]

devtools::check()

  --- re-building ‘job_logging.Rmd’ using rmarkdown
  Quitting from lines 18-22 (job_logging.Rmd) 
  Error: processing vignette 'job_logging.Rmd' failed with diagnostics:
  dot-env file does not exist
  --- failed re-building ‘job_logging.Rmd’

N  checking for unstated dependencies in vignettes
   '::' or ':::' imports not declared from:
     ‘dotenv’ ‘here’
   'library' or 'require' calls not declared from:
     ‘kableExtra’ ‘tidyverse’

[pbchase]

Addressed by PR #115