Bookshelves Support Hoppers

[FlowerOLife]

Wondering if hopper support could be added to bookshelves? :D

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[Th3Shadowbroker]

I'll have a look into that 🙂

[Th3Shadowbroker]

Brief status update:

• Identified event triggered by hoppers
• Added config setting (See Th3Shadowbroker@484e28e)
• Bookshelves accept incoming items from hoppers (See Th3Shadowbroker@ea5f915)
• Bookshelves support output through hoppers (See Th3Shadowbroker@2c844ec)
• Bookshelves do not continue processing their content after a server-restart or when a full inventory is no longer full.

One thing I noticed is, that the InventoryMoveItemEvent requires a transfer through at least 2 or more hoppers to be fired but this shouldn't be a real problem.

[Th3Shadowbroker]

cc: @InventivetalentDev

@FlowerOLife Sooo....I finally had some time to continue working on this after a busy week and I've built a prototype with a different approach. Please have a look and tell me what you think.
Bookshelves_v1.6.0-SNAPSHOT.jar.zip (Had to ZIP it, as jar files are only directly support for releases). I've also added some extra delay to the shelves when checking for in-/outputs, to improve the performance. To enable hopper support, please have a look at the config-file:

# Hopper support
hoppers: true

I'll attach a PR below and update it in case any changes are suggested 🙂

[Th3Shadowbroker]

I guess everything is done here ^^