Utility – Case Insensitive Comparisons

The token equal operator function uses case insensitive string comparisons that need to be replaced with standard string equivalents.  There is no direct equivalent, so the solution used so far was to use the std::equal function passing a case insensitive character comparison lambda function.  Since the std::equal function assumes equal length containers, the size of the strings need to be compared first to make sure the strings are the same length (or at least the primary string is not less than the secondary string when doing a string begins with comparison).

This pattern of comparing the string lengths before comparing strings is repeating, therefore two in line functions were added to do this.  The first, named no case string equal, checks if the string are equal and the second, named no case string begins with, checks if the length of the primary string is greater than or equal to the string being compared.  The lambda function was renamed to no case character equal for consistency.  The lambda function was moved from the main header file to the utility header file along with the two new in line functions.

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