Wensi's PV layer holder

This OpenSCAD script will generate a simple one piece fixture to hold a colleague's PV layer components i.e. PV cell, PCB and supercapacitor

NOTE: Before v0.7 parts of this file lie below z=0, these files will need to be moved onto the platform before printing! Be careful if you decide to print this!

I've got 30 of these guys to print!

Changes from previous versions:
2.1.0
- Variant that prints a simple 2cm tall cap to cover the electronics part of the holder
2.1
- Fixed some vlaues to place the support posts in corect location (up +1mm) scap leads Right +2mm
- increased post diameter for the two along one side slightly
2.0
- New layout (PCB rotated 90Degrees) and larger SCAP
- change pcb_l 30->35 pcb_b 35->30
- change scap_l 23->20 scap_b 15->22 scap_h 5->10
0.8
- add thin infill for hollow sections to improve printability
0.7
- moved entire structure above z=0 plane (no longer a destroyer of belts)
- added mouse ears
0.6
- made thinner
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