Finds all files in the current directory which end in the given extension.
This function supports filename bodging - for details see the bodgeFilenames command.
The function returns a stack containing an element for every file which was found. Each element is the name of a one of the files without the extension. The values in this stack can then be displayed on the screen for a user to choose which saved game to load or overwrite, although programming such an interface is left to the developer.
The Multi-Purpose Stack / Array / Queue Type
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