Allow setting creature sight range. #521

Job	Run time
Docker server build	2m 29s
Docker server build	2m 29s
Cross compile for Windows (Win7 compatible)	6m 17s
Cross compile for Windows (Win7 compatible)	6m 17s
Compile for Linux	6m 2s
Compile for Linux	6m 2s
Cross compile for Windows	6m 18s
Cross compile for Windows	6m 18s
Go build for Snapcraft	7m 8s
Go build for Snapcraft	8m 6s
Repackage Linux release (AppImage)	0s
Repackage Linux release (AppImage)	0s
Repackage Linux release (tar.gz)	0s
Repackage Linux release (tar.gz)	0s
Repackage Windows release (Win7 compatible)	0s
Repackage Windows release (Win7 compatible)	0s
Repackage Windows release	0s
Repackage Windows release	0s
Github release	0s
Github release	0s
	57m 26s

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