Added classifiers for Controller Area Network (CAN) (#166)

* Added CAN classifiers

* fixed CAN classifier order

Author: pullthebox

src/trove_classifiers/__init__.py

@@ -731,6 +731,9 @@
     "Topic :: Software Development :: Disassemblers",
     "Topic :: Software Development :: Documentation",
     "Topic :: Software Development :: Embedded Systems",
+    "Topic :: Software Development :: Embedded Systems :: Controller Area Network (CAN)",
+    "Topic :: Software Development :: Embedded Systems :: Controller Area Network (CAN) :: CANopen",
+    "Topic :: Software Development :: Embedded Systems :: Controller Area Network (CAN) :: J1939",
     "Topic :: Software Development :: Internationalization",
     "Topic :: Software Development :: Interpreters",
     "Topic :: Software Development :: Libraries",