[Feature Request] Please allow add edge properties in Loaders

[SuperBo]

Memgraph version Which version did you use? v2.13.0

Environment Some information about the environment you are using Memgraph
on: operating system, how do you connect, with or without docker, which driver
etc.

Describe the bug
Currently, there are no way to add properties to relationship created with "gqlalchemy.transformations.importing.loaders".

Please allow to add properties into created relationships in "many_to_many" cases.

Expected behavior

Allow to to add properties as well as column mappers.

many_to_many_relations:       # intended to be used in case of associative tables
  example:
    foreign_key_from:        # describes the source of the relationship
      column_name:
      reference_table:
      reference_key:
    foreign_key_to:          # describes the destination of the relationship
      column_name:
      reference_table:
      reference_key:
    label:
    column_names_mapping: {"current_column_name": "mapped_name"}

Logs
No log

Additional context
All properties in associate table should be added to relationship properties.

[Matea Pesic]

Hi @SuperBo thank you for opening this feature request and bringing more awareness to the issue :)