KRACOEUS-8201

KRACOEUS-8201
Add missing personnel period validation
Adjust personnel line item calculation
I do see similar rules in BudgetDocumentRule.java, BudgetPersonnelRule.java, also in the BudgetPersonnelAction.java  & BudgetPersonnelBudgetAction.java (both struts actions). While it would be nice to clean these up, i'm okay with going forward with this so long as we can confirm the PD budget doesn't refer to any of these old rule sections.