Glider Backpack (BackpackPackPlus compatible)

<p>The idea is taken from <a href="https://mods.vintagestory.at/show/mod/17826">https://mods.vintagestory.at/show/mod/17826</a><br />reworked for vanilla backpacks</p> <pre id="tw-target-text" class="tw-data-text tw-text-large tw-ta" dir="ltr" data-placeholder="Перевод" data-ved="2ahUKEwipgo_g1ZWLAxUIEhAIHRobIWQQ3ewLegQIBxAV" aria-label="Переведенный текст: Version 0.2.0 adds compatibility with mods: https://mods.vintagestory.at/show/mod/16954 and https://mods.vintagestory.at/show/mod/17001">Version 0.2.0 adds compatibility with BackpackPackPlus (<a href="https://mods.vintagestory.at/show/mod/16954">https://mods.vintagestory.at/show/mod/16954</a>) and BackpackPackPlus standart (<a href="https://mods.vintagestory.at/show/mod/17001">https://mods.vintagestory.at/show/mod/17001</a>)</pre>