wildcard handling

[PerditionC]

Depending on if long file API is available or not, wildcards can behave differently. Need a way to configure if user wants to wildcard against SFN or LFN API e.g. use * or . to find all files or if PKG.* matches everything or only files with PKG in the name portion. Consider adding support for advanced wildcards as supported by 4DOS - see 4DOS wildcard section in its help documentation.

Note: support for wildcards other than standard SFN based needs to be optionally enabled or a method to disable to avoid breaking batch files and people's expectations.