* Update Anycubic Kobra 0.4 nozzle.json
Fix incorrect parameters for M204 in start gcode
* Update Anycubic Kobra end_gcode and travel speeds
* Update Anycubic i3 Mega S start and end gcode
Profile created based on information contained in the printer's firmware and profiles recommended by the manufacturer for Cura. It has been tested on various parts including 3DBenchy with more than satisfactory results.