Fixed issue with automatic config variant selection, where we were not properly handling XMEGA targets with the JTAG physical interface.

Also introduced new AVR8 families, for D series targets.
Also moved AVR family param outside of TargetParameters struct

src/Targets/Microchip/AVR/AVR8/TargetParameters.hpp

@@ -10,8 +10,6 @@ namespace Bloom::Targets::Microchip::Avr::Avr8Bit
 {
     struct TargetParameters
     {
-        std::optional<Family> family;
-
         std::optional<std::uint32_t> bootSectionStartAddress;
         std::optional<std::uint32_t> gpRegisterStartAddress;
         std::optional<std::uint32_t> gpRegisterSize;