Throw a NotImplementedError for time functions on boards without long ints
Throw a NotImplementedError for time functions on boards without long ints

Fix for Issue #2812. Instead of reporting a missing attribute for functions such as time.time() and time.mktime(); platforms that do not have long integer support will raise a NotImplementedError
adafruit/micropython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/micropython,adafruit/circuitpython,adafruit/circuitpython,adafruit/micropython,adafruit/micropython,adafruit/micropython,adafruit/circuitpython