Update Terminology in Swkbd and Slightly Update Samples

[Fangal-Airbag]

• Clarifies the nn::swkbd::InputFormType enumerator's members' names.
• Sets the cursor that can appear in the Boxes input form type to appear by default.
• Updates the swkbd and erreula samples to correctly render swkbd and erreula, as well cleaning up their code. There was a call to VPADInit, for example which is a deprecated function.