Dependencies update#48

Open

ilyapavkin wants to merge 4 commits intothingsSDK:masterfrom

ilyapavkin:master

Commits on Sep 5, 2020

update packages, tests, code
ilya_pavkin
committed
updated code for serialport + tests
ilya_pavkin
committed

Commits on Sep 6, 2020

update package-lock.json
ilya_pavkin
committed
updated travis config to node 12
ilya_pavkin
committed