chore: tidy up rust code

docs: add README with information about the project

fix: make sure the image has width 800

fix: pixel_rgb888_t ordering

feat: implement linux app for sending images

fix: framebuffer offset in callback returning location

fix: coloring

chore: add rust dependencies to manifest

feat: allow skipping queue for larger memory moves

feat: allow reading larger packets without data loss

chore: move firmware to firmware/ folder

feat: implement application for receiving images

feat: implement dsi, ltdc, otm8009 display

chore: remove test sdram allocation

fix: systick delay

feat: vos0, system clock at 480 MHz

few minorities

chore: split main functions

fix: ability to change pll vcosel, disable pll outputs

feat: implement fmc sdram control