[DPB] added capability files for SN2700 platform
- Why I did it
platform.json and hwsku.json files are required for a feature called Dynamic Port Breakout
- How I did it
Created capability files according to platform specification SN2700
- How to verify it
Full qualification requires bugs fixes reported under sonic-buildimage
NOTE: breakout to 4 is currently not available as of missing functionality in DPB implementation.
Signed-off-by: Vadym Hlushko <vadymh@nvidia.com>
