#205 Improved RangeInput check

[Jan-Sandr]

This Pull Request is linked to which task?

205

Solution description

Added new method IsInfinityLast() to check if infinity is last character of input if not then it will notify user about the problem. Also wrapped ConvertInfinities() in to condition to avoid unwanted errors.

I confirm that

• [x] Application is runable
• [x] All added code is commented
• [x] I ran both code cleanup profiles
• [x] All tests passed