New "in_hands" and "onmob" icon sprites for objects, book import from PVE (thanks Amory), small changes and fixes #6951

Map renderings

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Github may fail to render some images, appearing as cropped on large map changes. Please use the raw links in this case.

Maps with diff:

MODIFIED - maps/map_files/BigRed/BigRed.dmm (Z-level: 1)

Modified region: (52, 84) -> (159, 157)

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MODIFIED - maps/map_files/CORSAT/Corsat.dmm (Z-level: 1)

Modified region: (187, 25) -> (191, 29)

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MODIFIED - maps/map_files/LV522_Chances_Claim/LV522_Chances_Claim.dmm (Z-level: 1)

Modified region: (38, 46) -> (162, 150)

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MODIFIED - maps/map_files/LV759_Hybrisa_Prospera/LV759_Hybrisa_Prospera.dmm (Z-level: 1)

Modified region: (94, 212) -> (98, 216)

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MODIFIED - maps/map_files/USS_Almayer/USS_Almayer.dmm (Z-level: 1)

Modified region: (160, 19) -> (230, 135)

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MODIFIED - maps/templates/lazy_templates/pizza_ert_station.dmm (Z-level: 1)

Modified region: (23, 31) -> (27, 35)

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