updated spec to 2.1, changed almost everything

other small fixes

solanaceae/ngc_ft1/ngcft1.cpp

@@ -56,7 +56,9 @@ void NGCFT1::updateSendTransfer(float time_delta, uint32_t group_number, uint32_
 						timeouts_set.erase({idx, id});
 						can_packet_size -= data.size();
 					} else {
+#if 0 // too spammy
 						std::cerr << "NGCFT1 warning: no space to resend timedout\n";
+#endif
 					}
 				}
 			});

solanaceae/ngc_ft1/ngcft1_file_kind.hpp

@@ -75,20 +75,7 @@ enum class NGCFT1_file_kind : uint32_t {
 
 	// https://gist.github.com/Green-Sky/440cd9817a7114786850eb4c62dc57c3
 	// id: ts start, ts end
-	// content:
-	//  - ts start (do we need this? when this is part of the id?)
-	//  - ts end (same)
-	//  - list size
-	//    - ppk
-	//    - mid
-	//    - ts
-	HS2_INFO_RANGE_TIME = 0x00000f00,
-	// TODO: half open ranges
-	// TODO: id based
-	// TODO: ppk based?
-
-	// id: ppk, mid, ts
-	HS2_SINGLE_MESSAGE,
-	// TODO: message pack
+	HS2_RANGE_TIME = 0x00000f00, // TODO: remove, did not survive
+	HS2_RANGE_TIME_MSGPACK = 0x00000f02,
 };