TPU toothpick self-adjusting GNB 450mah 2s battery mount

I have made a modification to fit GNG 450mah 2s battery which is wider than other brand's battery.

changelog:
* 2019-06-07
* add 2mm hole version.
* 2019-07-22
* add a version for pickle twist lock frame.
* 2019-08-05
* fix the issue that the twist lock version missing top part in cura.
* 2019-08-06
* change height of all version to 13 mm , the original height is 12 mm which i think is too tight.