Added ThunderPack board (STM32L0xx)#709

Merged

fpistm merged 11 commits intostm32duino:masterfrom

jgillick:master

Oct 23, 2019

Commits on Oct 19, 2019

Commits on Oct 20, 2019

Move BMP upload method to the correct section.
jgillick
authored

Commits on Oct 21, 2019

Commits on Oct 22, 2019