SL-856 Added concept and message codes for SL ANC

Author: lnball

configuration/messageproperties/messages_en.properties

@@ -1546,6 +1546,8 @@ pihcore.mch.internalReferredBy=If referred from within the facility, who referre
 pihcore.mch.otherSTI=Other STI
 pihcore.mch.gbv=GBV
 pihcore.mch.previousCSection=Previous c-section
+pihcore.mch.numPreviousCSection=# of previous c-sections
+pihcore.mch.yearsSinceCSection=# of years since previous c-section
 pihcore.reasonCSection=Reason for c-section
 pihcore.cSectionGoTo=For cesarean section, complete the c-section page.
 pihcore.cSectionFromSurgery=For cesarean section, complete c-section questions on the delivery form.