* create StateSerializer, an ITextStatable implementation using the Serializer class, and wire it up to the TI83 core
* wire StateSerializer to A2600 core
* wire up StateSerializer to AmstradCPC, C64, and ZXS
* wire up StateSerializer to MSX, A27800, and Coleco
* wire up state serializer to ChannelF, Vectrex, Intellivision
* fix GambatteLink to implement ITextStatable, implement TextSerializer in O2
* StateSerializer - wire up a loadstate callback and implement StateSerializer for NesHawk, a bit of rework to subNesHawk as a result
* fix subneshawk text savestates
* StateSerializer - implement byte[] buffer storing (optionally), wire up to PCE
* implement StateSerializer to SMS, tweak GGLink accordingly
* implement StateSerializer in GBHawk, fix link cores accordingly
* StateSerializer - use Serializer static methods to create serializers
* refactor Sms settings including naming conventions and fix a typo, breaks configs with SMS settings already saved
* convert SMS controller type setting to an enum
* convert SMS Region setting to an enum
* Move SMS display type setting to an enum
* convert sms settings to properties
* SMS - wire up generic core config to a settings menu item
* remove some SMS menu items that are redundant to generic settings config
* remove more SMS menu items that are now redundant to generic core config
* remove more redundant SMS settinsg including SMSGraphicsConfig dialog, add descriptions and display names to SMS settings objects
adelikat