471fdae993
These modules would be very handy to have in order to implement a more robust replacement for ampy. It costs around 2KiB of text and no data or bss. 'binascii' has base64 encoding, which can be used to create a fully 8-bit-clean transport above the slightly cooked serial connection of these boards. 'hashlib' is a bit less critical, but I have found it handy to be able to robustly checksum remote files. I see this as only being useful on ports which don't have USB block device support, so atmel-samd doesn't need it. These modules are already on esp8266 so I think nrf52 seems like the only one that needs it.