I2C: Add as type and fix network definitions

The first I2C was mysteriously missing, it is here now.

In addition, I2C support will soon be requested so it has been
given its own type.

include/icsneo/communication/network.h

@@ -102,6 +102,7 @@ public:
 		FlexRay = 85,
 		FlexRay2 = 86,
 		OP_Ethernet12 = 87,
+		I2C = 88,
 		MOST25 = 90,
 		MOST50 = 91,
 		MOST150 = 92,
@@ -133,6 +134,7 @@ public:
 		LSFTCAN = 7,
 		SWCAN = 8,
 		ISO9141 = 9,
+		I2C = 10,
 		Any = 0xFE, // Never actually set as type, but used as flag for filtering
 		Other = 0xFF
 	};
@@ -158,6 +160,8 @@ public:
 				return "Low Speed Fault Tolerant CAN";
 			case Type::SWCAN:
 				return "Single Wire CAN";
+			case Type::I2C:
+				return "I²C";
 			case Type::Invalid:
 			default:
 				return "Invalid Type";
@@ -227,6 +231,11 @@ public:
 			case NetID::ISO9141_3:
 			case NetID::ISO9141_4:
 				return Type::ISO9141;
+			case NetID::I2C:
+			case NetID::I2C2:
+			case NetID::I2C3:
+			case NetID::I2C4:
+				return Type::I2C;
 			default:
 				return Type::Other;
 		}
@@ -403,6 +412,8 @@ public:
 				return "FlexRay 2";
 			case NetID::OP_Ethernet12:
 				return "OP (BR) Ethernet 12";
+			case NetID::I2C:
+				return "I2C";
 			case NetID::MOST25:
 				return "MOST25";
 			case NetID::MOST50: