Ryobi bench top power supply

Much credit to [pwkalahar](https://www.thingiverse.com/thing:2467237) for the idea. I went a step further, but had to start from scratch since this is intended for a DPH3205.

This is a portable bench top power supply. I really just wanted to make my TS100 portable. Since I have so many of these batteries, it seemed logical, but I wanted to run it at 24v. So I designed this to fit a [RD DPH3205](https://www.aliexpress.com/item/RD-DPH3205-Buck-boost-converter-Constant-Voltage-current-Programmab