112 - Replace UTF-8 quotes with ASCII quotes (usdot-fhwa-stol#114)

The previous quote marks were UTF-8 characters for left quote and right quote,
resulting in the file being UTF-8 encoded. This causes file reading issues on
environments with a non-UTF-8 locale (e.g., a POSIX locale). Replacing the
UTF-8 quote marks with ASCII versions fixes the issue.

j2735_msgs/msg/LaneAttributesTrackedVehicle.msg

@@ -8,7 +8,7 @@
 #
 # The LaneAttributes-Special data element relates specific properties found
 # in a tracked vehicle lane types (trolley and train lanes).
-# The term “rail vehicle” can be considered synonymous.
+# The term "rail vehicle" can be considered synonymous.
 # In this case, the term does not relate to vehicle types with tracks or treads.
 #
 # LaneAttributes-TrackedVehicle ::= BIT STRING {
@@ -24,4 +24,4 @@
 # -- Bits 5~15 reserved and set to zero
 # } (SIZE (16))
 
-uint16 lane_attributes_trackedvehicle
+uint16 lane_attributes_trackedvehicle