Update base for Update on "[ET-VK] double, short, and uint16 dtype runtime support"

Creating support for double, short, and uint16 for quantization ops. Registering the short keyword since theres already support.

Also changing the cpu implementation to support half

Differential Revision: [D75959063](https://our.internmc.facebook.com/intern/diff/D75959063/)

[ghstack-poisoned]

Author: morelos