Bubble Magus NAC Series name changed to C series

Bubble magus NAC series will have a name change. The new name will be C series.

So before, NAC3.5 now it will be C3.5
So before, NAC7 now it will be C7

This apply to all NAC series, new name will be C series. Everything else stay the same, only the name changed.

Thank you for your support.