Improve feature set storage method, fix board definitions and other bugs#6

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DeanBilotti wants to merge 10 commits intobackupbrain:masterfrom

DeanBilotti:master

Commits on Aug 27, 2016

__AVR_Atmega32U4__ -> __AVR_ATmega32U4__
jpoppe
authored

Commits on Jul 3, 2017

Use bitwise operators to store Arduino feature sets (fixes feature set bug where NUM_FEATURES set to 1 instead of 5)
DeanBilotti
committed
Use board model defines rather than hard coded literals.
DeanBilotti
committed

Commits on Jul 5, 2017

Merge remote-tracking branch 'jpoppe-patch/patch-1'
DeanBilotti
committed

Commits on Nov 19, 2022

FLASH_SIZE is reserved, at least for SAMD boards. This allows it to compile and run.
ayourk
committed

Commits on Apr 18, 2026

Merge pull request #1 from ayourk/master
DeanBilotti
authored