* add item.character_owner
* Address review comments
- Cleanup chr_from_wornitems
- Return BError if no character owner
* Add Target option TGTOPT_ALLOW_NONLOCAL
* Address review comments
- Remove `Core::chr_from_wornitems`
* Add pol tests for snooping
* Add tests for TGTOPT_ALLOW_NONLOCAL
* target_nonlocal_checklos pol test debugging
* target_nonlocal_checklos pol test debugging
- Remove destroy of obstacle
- Add a CheckLosAt call to error return
* target_nonlocal_checklos pol test debugging
- Enable USAN build
* undo test debugging changes
* use mobile for los when targetting snoopable items
* Update core-changes
* Persist SnoopScript for items on save
* Add snoop_script_ to Item::estimatedSize
* document SnoopScript script type
* Initial work on adding SnoopScript
* use message "That doesn't belong to you..." if lifting a snoopable item
* fix configfile changes
* Update core-changes
* Fix SetString packet hook method writing UTF-8 instead of CP-1252. Add a new method, SetUtf8String, for writing UTF-8.
* Add functions that operate on whole strings.
* Fix a couple of bugs and add unit tests.
* Do not convert if the string doesn't contain any UTF-8
* Convert 0x80..0x9f control characters, which don't exist in cp1252, to question marks
* Fix SetUtf8String writing too few bytes if the string contained multi-byte UTF-8 characters
* Remove extraneous parameter from TextCommandScript documentation
* Update changes and docs
