EDDN: use this.odyssey for Journal outfitting and shipyard

For consistency with the horizons flag.  They *are* placed *from* the
`this` versions into `entry`, but we might as well go the direct route.
They have to be set explicitly here as we process the `entry` to make a
wholly new `message` rather than the `message` just being `entry` with
some changes.

plugins/eddn.py

@@ -575,7 +575,7 @@ Msg:\n{msg}'''
                     ('marketId',    entry['MarketID']),
                     ('horizons',    this.horizons),
                     ('modules',     outfitting),
-                    ('odyssey',     entry['odyssey'])
+                    ('odyssey',     this.odyssey),
                 ]),
             })
 
@@ -604,7 +604,7 @@ Msg:\n{msg}'''
                     ('marketId',    entry['MarketID']),
                     ('horizons',    this.horizons),
                     ('ships',       shipyard),
-                    ('odyssey',     entry['odyssey'])
+                    ('odyssey',     this.odyssey),
                 ]),
             })