add entire atmosphere source code and also add ram timing fixes

Source/Atmosphere/troposphere/daybreak/nanovg/README.md

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+NanoVG for Deko3D
+==========
+
+NanoVG is small antialiased vector graphics rendering library. This is a port to [deko3d](https://github.com/devkitPro/deko3d), a low level 3D graphics API targetting the Nvidia Tegra X1 found inside the Nintendo Switch.
+
+## Example
+An example of using this library can be found [here](https://github.com/Adubbz/nanovg-deko3d-example).
+
+## License
+The library is licensed under [zlib license](LICENSE).
+
+Dependencies:
+- fincs' deko3d framework is licensed under [zlib license](source/framework/LICENSE).
+
+## Links
+The original [nanovg project](https://github.com/memononen/nanovg).
+Uses [stb_truetype](http://nothings.org) for font rendering.
+Uses [stb_image](http://nothings.org) for image loading.