Missed components connections

[akokoshn]

In case of using memory operations like load/store, gep and pointer arithmetic we may miss connections between components (result of the first components no correlate with input of the second one).

Example:

How to fix:

• *Add check connectness for assign with --check option
• Make sure that values from internal_storage not passed as component's input:
  • Load result is stored var - Done
  • Use mockups with keep connectness for select, and, or, xor. Seems current bitwise components are not applicable : https://www.notion.so/nilfoundation/New-Components-Description-8012f3c4067b43b89e7c8246b42ccc38
• Pointers should not depend on inputs. May be need add check
• Check connectness of mock up components:
  • bls12_381_paring
  • fp12_multipliction
  • h2c
  • in_g1
  • in_g2

[akokoshn]

Fixed in #601