Merge pull request NVIDIA-AI-IOT#382 from NVIDIA-AI-IOT/v0.4.3

[WIP] V0.4.3

Added fix for third party motor variant

Initial support for docker

Merge pull request NVIDIA-AI-IOT#176 from NVIDIA-AI-IOT/dev-sdcard

update to JetPack 4.3 - sdcard v0.4.0

cleared exec count