**- What I did**
#### wheel package Makefiles
- wheel package Makefiles for sonic-yang-mgmt package.
#### libyang Python APIs:
- python APIs based on libyang
- functions to load/merge yang models and Yang data files
- function to validate data trees based on Yang models
- functions to merge yang data files/trees
- add/set/delete node in schema and data trees
- find data/schema nodes from xpath from the Yang data/schema tree in memory
- find dependencies
- dump the data tree in json/xml
#### Extension of libyang Python APIs:
-- Cropping input config based on Yang Model.
-- Translate input config based on Yang Model.
-- rev Translate input config based on Yang Model.
-- Find xpath of port, portleaf and a yang list.
-- Find if node is key of a list while deletion if yes, then delete the parent.
Signed-off-by: Praveen Chaudhary pchaudhary@linkedin.com
Signed-off-by: Ping Mao pmao@linkedin.com
