Remove unnecessary eval function from util file.

[Maya]

Description

The util file contains a call to eval function at:
https://github.com/IgniteUI/ignite-ui/blob/master/src/js/modules/infragistics.util.js#L6146

This is considered a security vulnerability and should be removed.
For other similar scenarios where the name of the function is passed (string) the function is retrieved from the window object, so the same can be done here.

• ignite-ui version: 2020 Vol. 2
• browser: Any

Steps to reproduce

1. Check the file at: https://github.com/IgniteUI/ignite-ui/blob/master/src/js/modules/infragistics.util.js#L6146

Result

Eval call is used.

Expected result

No eval used.