17 goals functionality

[mlhaufe]

Closes #17

• Implemented DataTable component
• Refactored existing tables to utilize DataTable component
• Fixed slug bug in PegsCard
• Defined abstract PegsRepository
• Implemented Behavior Domain object
• Migrated Mapping to Domain objects directly (short-term solution)
• Converted GlossaryTerm from a type to an Entity
• Created a generic Properties<T> declaration to subsume the FooOption interfaces
• Implemented Goals/Functionality page