Avram add speedup lora flashlora bug fix timeralarm sleep rgb persistent

[avram-pycom]

• bugfix int lora while flash write
• speed up spi/lora
• config gpios int sleep wakeup
• timer alarm - adjusted for sleep
• rgb led color stored in flash

[CLAassistant]

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1 out of 6 committers have signed the CLA.

:white_check_mark: Xykon
:x: avram-pycom
:x: geza-pycom
:x: robert-hh
:x: peter-pycom
:x: catalinio

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