Accessible Boost 150w and Buck 300w converter case

I like how the original design expose heat-sinks for better cooling, while remain pretty sleek. I remixed this design to:

- Make it a bit longer (a few mm) since the original didn't fit my 300w XL4016 buck converter board. I think the original case wad designed for OSKJ board, but the one I bought seem to be a copy of that so it didn't fit. (My 150w OSKJ boost board fit original case) - Make holes on top cover to we can adjust current / voltage as well as all screw terminal without re-opening the case each time.

There are 2 choices for cover:

- Cover_Click_remix_v2: If you don't want to use any hardware at all. This cover will press down on the board and keep it in place. - Cover_Screw_remix_v2: If you use screws to secure the board, print this cover. The “Click” cover doesn't leave any clearance so it won't fit with the additional thickness of screw-heads.