Util funcs

[Azanul]

Problem

Util functions are very limited, GetPriceMap has the limitation of using only "group" attribute for using as price map key.

Solution

Introduction of a new argument field in the util function GetPriceMap to make the key dynamic

Notes

Will keep on adding more attributes as the need arrises

Checklist

• Code follows the contributing guidelines
• Changes have been thoroughly tested
• Documentation has been updated, if necessary
• Any dependencies have been added to the project, if necessary

Reviewers

@[username of the reviewer]