Paste to vSphere VM

This extension helps to paste the clipboard (password, etc) to vSphere VM HTML console via keystrokes, simulating keyboard input. Based on mengji "Paste To VM" extension - with removed jquery (calls replaced with native js), v3 compatible, for security purposes it clears the clipboard after first paste. Make sure to reload the console tab for clean initialization, don't click on the VM console window, just press Ctl-Shift-v (Win, Linux) or Command-shift-v (Mac) to paste the clipboard text to VM console via keystrokes simulation.