implement data logging to external SPI flash memory

[bytecod3]

Deliverables

• memory size
• write speed
• read speed
• circuit diagram
• implementation code
• possible read write cycles
• needed memory calculation

[bytecod3]

The latest hardware tests and results are updated on the flight software documentation on the README file here

[bytecod3]

Check the README.md for documentation The external flash memory writing and reading tests are done. Check video here -> test-video