Refactoring of icon handling #13
Description
The current approach of icon handling is to create a folder in LOCALDATA, download the shell's icon from the GitHub repository or create the icon when download fails from a base64 string.
The new approach will use EXE icon by default, brings a new switch -UseCustomIcon to the Set-OpenHereShortcut. The current approach will be used when -UseCustomIcon will be present in a SetOpenHereShortcut call.