Global setting for disabling file name and file path case sensitivity

[grahamboree]

Switching between case-sensitive and case-insensitive operating systems can be a pain point. e.g. something like Configs.ParseFile("myFile.yaml") will work with a file named MyFile.yaml on case insensitive file systems but not on a case-sensitive one.

This can make certain errors only appear in production or when running on other systems.

There should be a global setting that controls case-sensitivity in filename and file path searching that defaults to true:

Configs.Settings.CaseInsensitiveFilenames = true;

And any file name or path manipulation in FileManager should respect this setting.