[ZX Spectrum Video] Afternoon walk

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A video of me walking, converted to ZX Spectrum-compatible* graphics.

Even though bright mode is implemented, for some reason, it just doesn't want to use it. I have tested and it does get activated in very specific circumstances, but in this case, it was not used. I tried to tweak the algorithm so that bright mode is used more, and the result is this: https://youtu.be/6OgyFdaRRH4

The following restrictions are applied:
- ZX Spectrum resolution of 256x192
- a tile is 8x8 pixels
- maximum of 2 colors per tile, from a selection of 8
- if deemed necessary, "bright mode" is enabled on the tile, and the colors are made brighter.

The following restrictions are NOT applied:
- I don't know how many unique tiles the ZX Spectrum can show in one frame, and I don't even know if it supports bankswitching with a ROM cartridge, so I just ignored the limitation completely
- The bitmap part of the screen may not be in the right aspect ratio. I don't know. Sorry.

With all this said, the disclaimer: this probably won't run on real hardware. There are just too many obstacles we need to pass to make that happen. There's the CPU speed, graphics access speed, RAM size, storage size... This was made to just "simulate" how a video would look like if we were to apply the restrictions as written above.