added picture, readme, and tented bottom plates for swweeep case

cases/swweeep/README.md

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+# swweeep case
+
+![swweeep-case-covered-01.jpg](images/swweeep-case-covered-01.jpg)
+
+## Required parts
+
+* 2x body
+* 2x bottom plate
+* 8-12x M2 heat set inserts, 4mm in length
+* 8-12x M2 screws, 4-6mm in length (5mm is best)
+
+## Bodies
+
+### swweeep-body-open-left
+
+This is an uncovered case, which means the controller is exposed. Not recommended if using the nice!view, but fine otherwise
+
+### swweeep-body-covered-left
+
+Covered controller, to be used with a nice!view
+
+### swweeep-body-covered-widecover-left
+
+Covered controller, to be used with nice!view. This provides enough room on the side of the controller to store a 110 mah battery. Note that this leaves the on/off switch a bit from from the opening on the inside, so you'll need more precision with tweezers or a paper clip to turn it on and off.
+
+However, given you can store the battery on top, you can use the thin bottom bottom plate with this ( `swweeep-bot-widecover-left` )
+
+## Bottom Plates
+
+### swweeep-bot-left
+
+This is a thin bottom plate, intended to be used with `swweeep-body-covered-left` or `swweeep-body-open-left`. Only use this plate if you have a 3mm thick battery. If your battery is 4mm thick, please use the `swweeep-bot-3mm-left` plate.
+
+### swweeep-bot-3mm-left
+
+This is a thin bottom plate, intended to be used with `swweeep-body-covered-left` or `swweeep-body-open-left`. As mentioned above, made to give a little extra room for a 4mm-4.5mm thick battery.
+
+### swweeep-bot-widecover-left
+
+This is a thin bottom plate, intended to be used with `swweeep-body-covered-widecover-left`. Given you are using this case to store the battery on the side of the controller, this is the recommended bottom plate.
+
+### swweeep-bot-widecover-3mm-left
+
+This is a thin bottom plate, intended to be used with `swweeep-body-covered-widecover-left`. I added this for good consistency, but it's unlikely you'd use this one. The only reason to use this bottom plate is that you are using the `swweeep-body-covered-widecover-left` body, not putting the battery next to the controller, and you have a 4mm thick battery.
+
+### swweeep-bot-10deg-battery-small
+
+This is a 10 degree tented bottom plate, intended to be used with `swweeep-body-covered-left` or `swweeep-body-open-left`. There is a small battery compartment in the tent to put your battery. Fits a 4mm thick 110 mah battery, up to 12mm x 33mm
+
+### swweeep-bot-10deg-battery-large
+
+This is a 10 degree tented bottom plate, intended to be used with `swweeep-body-covered-left` or `swweeep-body-open-left`. There is a large battery compartment in the tent to put your battery. Fits a battery up to 30mm x 54mm x 10mm
+