[FEATURE] build in YOCTO

[qzhuyan]

Is your feature request related to a problem? Please describe.
FlowSDK could be used in YOCTO.

Describe the solution you'd like
The no-io design should work. Just wireup the system library.

Describe alternatives you've considered

1. Static cross compile.
   This is not transparent enough but could be used to check the compatibility.

2. no-std only as backup plan.
   limited support, major refactoring.

Additional context
Add any other context or screenshots about the feature request here.