Merged Retraction Test 0 to 7mm

I tried tuning retraction setting for TPU.  Each test is just in 8 minutes, but I needed to remove printed part and print part in new setting. I hope to start print for several setting at once, so I merged some settings.

From the front, the settings are as follows,

Retraction: 0mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm and 7mm

Retraction speed: 70mm/s

temperature: from 200 degree to 235 degree in 5 degree step

230 degree for Polymaker TPU95, 225 degree for Reprapper TPU

If you’d like to tune some parameters, please refer the 3mf file.