Yparser wire values

This change unifies and simplifies (using wire context) binary data transformations for the yparser. The same binary representation is used for the configuration data representation in the database. Also there are some improvements like better address range specification.

Added 3 commits:

• c8c30c30 - yparser: use wire context for txt<->bin transformations
• d77b79c8 - confdb: use wire context for multivalued operations
• 17922f68 - tests: add config tools tests

Added 1 commit:

• 3950ed21 - tests: add config tools tests

mentioned in commit 74b51aea

Status changed to merged