Update flash library to use SPI library, add void * support, refactor
Revert "Update flash library to use SPI library, add void * support, refactor"

This reverts commit f5617b9ec841c1cf722177939f654b8b0739b9da.
Update FLASH to use spi, support arbitrary data pointers via void *
Merge pull request #38 from harlequin-tech/master

Update flash library to use SPI library, add void * support, refactor