Clean up inst/config/workflow

[jwildfire]

Summary

This PR migrates/deletes functions in the inst/config/workflow folder:

• Creates /R/tplyr_shift_chart.R. This seems to deal with the dependency issues and fix the shift table, which now renders. Still need to do tplyr renderers not working in newest safetyGraphics Build #53 before v1.0 to have full safetyGraphics functionality.
• Migrate lab distribution module to /R/mod_lab_distribution.R and add documentation.
• Leaving /inst/config/workflow/safety_histogram_chart.R for now. Will deal with that in WIP: safetyHistogram updates #45

Test notes

Confirm that shift table and lab distribution work as expected in safetyGraphics and in the exported html.

devtools::install_github("safetyGraphics/safetyCharts", ref="fix-43-50")
library(safetyCharts)
devtools::install_github("safetyGraphics/safetyGraphics", ref="reports-updates")
library(safetyGraphics)
safetyGraphics::safetyGraphicsApp()

[jwildfire]

Merge this after #52

[elimillera]

One question but looks good

[elimillera]

Does this yaml need the export?

[jwildfire]

Doesn't hurt to add it, but will default to TRUE if nothing is provided.