Replaces usage of standard RTL file functions with fpGUI versions.
Replaces usage of standard RTL file functions with fpGUI versions.

The fpGUI versions are OS encoding enabled.

wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI,wkitty42/fpGUI