Bugfix: Visualize_Poisson() log exposure

[mattroumaya]

Expected Behavior

• PR Fix 172 ae visualize #174 refactored Visualize_Poisson()
• Test code below should produce viz

dfInput <- AE_Map_Adam( safetyData::adam_adsl, safetyData::adam_adae )
SafetyAE <- AE_Assess( dfInput , bDataList=TRUE)
dfBounds <- Analyze_Poisson_PredictBounds(SafetyAE$dfTransformed, c(-5,5))
Visualize_Poisson(SafetyAE$dfFlagged, dfBounds)

Current Behavior

• Error produced

Error in `.data$LogExposure`:
! Column `LogExposure` not found in `.data`.

Possible Solution

.data$LogExposure becomes log(.data$TotalExposure)

Steps to Reproduce

• Run test code above

Possible Implementation

• Simple change noted above should fix the current version
• Development also TBD for adding Analyze_Wilcoxon()