Make WarFoundry API load files in small methods

[ibboard]

The current staged file loading in WarFoundry is an "all at once" approach of loading the remaining data and then throwing it at the object. This should be replaced with a more granular version that loads data and follows links as necessary, adding each object to its parent individually where possible.

[ibboard]

(In r16) Re #9 - more granular loading

• Remove SystemStatsSet class so that other classes don't know the internals of how GameSystem stores its stats (cleaner code principle)
• Make XML loader each stats set and add to the game system
• Add methods to GameSystem to remove use of SystemStatsSet and hide internal handling
• Add methods to add SystemStats to GameSystem

[ibboard]

(In r18) Re #9 - Make WarFoundry loading granular

• Remove specific staged loading classes
• Rework category loading for GameSystem and Race to make it use AddCategory(Category) method
• Promote staged loading from Native Factory to all Factories level
• Refactor XML Factory to use smaller methods

Also removed some commented code that isn't used any more

[ibboard]

(In r22) Re #9 - Make WarFoundry API load files in small methods

• Add "add unit type" and "add equipment" methods to Race
• Deprecate old "set unit types" and "set equipment" methods on Race
• Update WarFoundryXmlFactory to use new methods
• Create DuplicateItemException for later use

[ibboard]

(In r23) Re #9 - Make WarFoundry API use smaller methods

• Obselete old Category and UnitType constructors and add minimal constructors
• Add setters to properties where needed
• Add value sanity checking to Category and UnitType
• Set default values for percentages, choices and points for Category
• Make XML factory use new constructor and setter properties
• Add DuplicateItemException to project file

[ibboard]

(In r24) Re #9 - Make WarFoundry API use smaller methods

• Use new UnitType constructor
• Add units to race
• Cascade up unit loading function hierarchy instead of jumping a step

[ibboard]

(In r25) Re #9 - Load in smaller methods

• Fix earlier commit that caused exceptions about already being in dictionary for first object by caching before adding

[ibboard]

(In r89) Re #61 - Complete structure of WarFoundry API objects

• Remove min/max from EquipmentItem and add description
• Add min/max numbers and percentages to UnitEquipmentItem
• Make Race schema define min/max number without the ratio (which is the percentage)
• Replace use of EquipmentItem with UnitEquipmentItem because of increased use of UnitEquipmentItem for unit-specific data
• Use doubles instead of floats for equipment amounts
• Distinguish between ratio and absolute limits
• Delete UnitEquipmentItemObj helper class that was purely used for UI

Re #9 - Use smaller methods

• Deprecate long Race and EquipmentItem constructors and ensure all getters/setters exist

Also:

• Migrate Unit to using genericed collections
• Always use GameSystem object for Race, not ID string

[ibboard]

(In r91) Re #9 - Refactor for small methods

• Replace use of obsolete constructors with small constructors and property setting

[ibboard]

Nothing is obviously loading in large chunks any more. Closing ticket.

[ibboard]

Mark released changes as released

[ibboard]

Mark released fixes as released using radio values

[ibboard]

Mark fix as released under a previous version