* delint_d2networking
not sure what to do about lint error G110 on calls to `io.Copy`, warns
about gzip compression bomb possibility, leaving those.
all todo's have been left.
* removed duplicate const
* Added automap.go stub
* Handle errors in original AutoMap.txt file
* Completed AutoMapRecord struct and comments
* AutoMap loader implemented
* Update from base repo
* Comments added to d2netpacket and d2netpackettype.
Note, the Overview for d2netpacket is in net_packet.go. It could be placed in a doc.go file but net_packet.go seemed appropriate in this case.
* Comments added to d2server
* client_connection.go missed from previous commit
* Comments added to d2client
* Doc.go added to d2networking and other corrections
* Switched to json formatted characters
* Added infrastructure for networking
* Minor updates.
* more updates for map engine/rendering
* More map engine changes and fixes
