4.7.1 : Add support for yaml anchors, aliases and merge keys

Goals

This milestone includes:

• Printing of ut-core version during runtime.
• Support for yaml anchors, aliases and merge keys in ut-control
• Fix stack smashing observed in ut-control

What's Changed

• Adding ut core version print in executable by @kanjoe24 in #209
• PR gh #213 : Updating ut-core with ut-control 1.6.4 by @kanjoe24 in #214

Full Changelog: 4.7.0...4.7.1