Created model and DI for hpi_fields table
Added model and DI for treatment_fields table
Added model and DI for patient_encounter_hpi_fields table
forgot generic repo from last commit
Added model and DI for patient_encounter_treatment_fields table
organized DI data layer module
Added date_taken to patient_encounter_treatment_fields
add not null to columns in patient_encounter_hpi_fields
Merge pull request #83 from kevinzurek/feature-DataModels

Feature data models
modified age to date format, Evolution for age change from int to date
[feature-triage-dateformat] changing age to Date format
modified age to date format, Evolution for age change from int to date
[feature-triage-dateformat] changing age to Date format
confict resolved for 18.sql
Move relevant Treatment data from POST to ViewModel
Fixed model and save one treatment value
Save one of each treatment field
Allow user to enter up to 5 prescriptions with + button
Dynamic number of medications are saved with a treatment - up to 5
Dynamic number of problems are saved with a treatment - up to 5