PSPad File handling plugin

Idea - each file extension has own EXE. 
Plugin is used for the file open/save handling if EXE exists and match plugin name to file extension. 
Plugin loads file given by input file parametr, transform it and save it to output file

EXE plugin must support 3 parameters:

syntax: switch InputFile OutputFile

switch: -L|-S  

Load file using plugin:
extension.exe -L "existing_file" "temp_file_for_PSPad"

Save file with plugin:
extension.exe -S "temp_file_from_PSPad" "output_file"
