[Spike] Investigate how (and when) to get rid of elements-utils

[mpodlasin]

Currently elements-utils is not used by elements packages at all.

Some of its functions are used in elements service and likely in some other places.

Theory

We suspect it should be possible to move the entire project under platform-internal/libs. Find out if this is a viable solution or not by attempting the move.

AC

• if the move is successful, release it, delete elements-utils from elements and possibly deprecate it on NPM
• if not
  • find out where are the functions from elements-utils used
  • find out how they are used and if they have to be used in those places
  • find out when it would be possible to get rid of it
  • write story/stories resulting in allowing us to remove elements-utils entirely