Clipboard

The clipboard differs in every operating system, therefore we need different implementations for each OS.
Clipboard.h provides two functions:

• toClipboard(text): Copies text to the clipboard
• fromClipboard(): Returns text from the clipboard

where text is an std::string.

If there is an implementation for an OS, the clipboard works between Orxonox and every other program. If there is no implementation for a specific OS, the clipboard works only within Orxonox.

Please try to add an implementation for your OS if not already existing.