Customizable springed case for drill bits

Thingiverse Customizer doesnt support this model right now.
Use __OpenSCAD__ to make case for your own drill bits.
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An old blade of utility knife is used as spring and paper clip as shaft for hinge.

### Main paremeters:
* drills - array of your bits measurements
format: [ [ bit_1_diameter, bit_1_length], [ bit_2_diameter, bit_2_length] .....]
* blade - width of blade
* text height - use 0 value if you want write text by hand.
* mode -
Both parts - use for export all
Part 1 - use for export only first part
Part 2 - use for export only second part