Filters on object inventory

[canny[bot]]

Test plan:

• Add a variety of content to an object's inventory.
• Verify typing a string in the filter field correctly filters the list of items.
• Verify multi-select and supported right-click options work

---

With objects containing up to 10k items in its inventory, the ability to filter them by type or partial name would be very helpful. I was thinking about how we can filter items in our inventory. Having that feature to be able to filter a items inventory would save so much time.

https://secondlife.canny.io/admin/board/feature-requests/p/filters-on-object-inventory

[canny[bot]]

This issue has been linked to a Canny post: Filters on object inventory :tada:

[vladyslavasproductengine]

Passed QA.

Verified on the Second Life Release 7.1.11.10947335521 (64bit) on Win10/OSX in the scope of https://github.com/secondlife/iqa/issues/348.