D&D AoE cone spells templates

Cone templates for calculating area of effect for D&D spells.

I loved TheSheDM's design from the start, however I don't play D&D in US-english. To not get confused with ft units, I've converted them for metric ones.

Per each spell area there are 3 model variants:
- suffixed with '_A' - the most simplistic ones, use minimal filament;
- suffixed with '_B' - taller version for better grip;
- suffixed with '_B_labeled' - the '_B' version with the relative size (both in ft and m units) embossed on one side.

Those templates are designed to be used on [1 inch / 25 mm] grid.

I've also remixed in the same way the sphere templates and the cube templates.

UPDATE 08.04.2023: I've reorganized files into folders.