The new FileReader class allows using either a FileIOBase or SystemFile
classes for reading files.
If a non-nullptr FileIOBase is supplied, the FileIOBase is used,
otherwise SystemFile is used.
Updated the SettingsRegistryMergeUtils
`MergeSettingsToRegistry_ConfigFile` function to use the FileReader.
This allows .cfg such as the autoexec.cfg to be read using FileIO,
therefore allowing it to be read from the engine.pak file.
Because the AZ::Console::ExecuteConfigFile uses the
`MergeSettingsToRegistry_ConfigFile` function for merging *.cfg files to
the SettingsRegistry, this allows the AZ::Console to run console
commands from files within pak files thanks to the ArchiveFileIO being
the default FileIOBase instance
Signed-off-by: lumberyard-employee-dm <56135373+lumberyard-employee-dm@users.noreply.github.com>
lumberyard-employee-dm
2ce7bbd945