added a TODO to radio_link.h explaining the goal of this branch (packet_handling)
added a TODO to radio_link.h explaining the goal of this branch (packet_handling)

jamorham/wixel-xDrip,pdg137/wixel-sdk,sm6xmm/wixel-xDrip,StephenBlackWasAlreadyTaken/wixel-xDrip,saercnap/wixel-DexDrip,raduiliescu/wixel-DexDrip,kevinwchang/wixel-sdk,novagannas/wixel-xDrip,StephenBlackWasAlreadyTaken/wixel-xDrip,attackcrow/wixel,attackcrow/wixel,markncooper/burnerlight,novagannas/wixel-xDrip,novagannas/wixel-xDrip,attackcrow/wixel,jamorham/wixel-xDrip,attackcrow/wixel,raduiliescu/wixel-DexDrip,markncooper/burnerlight,Cagier/wixel-xDrip,Cagier/wixel-xDrip,pdg137/wixel-sdk,sm6xmm/wixel-xDrip,jamorham/wixel-xDrip,markncooper/burnerlight,StephenBlackWasAlreadyTaken/wixel-xDrip,pdg137/wixel-sdk,saercnap/wixel-DexDrip,kevinwchang/wixel-sdk,saercnap/wixel-DexDrip,Cagier/wixel-xDrip,sm6xmm/wixel-xDrip,jamorham/wixel-xDrip,kevinwchang/wixel-sdk,raduiliescu/wixel-DexDrip,sm6xmm/wixel-xDrip