Add loss-free resistor example circuit

[esaruoho]

Summary

• Adds an example circuit demonstrating a Loss-Free Resistor (LFR) (Feature Request: Loss free resistor #132)
• Uses VCCS + VCVS controlled sources to model the LFR, based on Paul's approach from the issue discussion
• The LFR presents a resistive input while transferring absorbed power losslessly to the output
• Added to setuplist.txt under a new "Loss-Free Resistor" section near Current Conveyor

Test plan

• Load example from menu → verify circuit loads and simulates correctly
• Verify input side draws current proportional to voltage (resistive behavior)
• Verify output capacitor charges with the transferred power
• Verify scope traces show expected waveforms

Fixes #132

🤖 Generated with Claude Code

[pfalstad]

Circuit doesn't load correctly for me.
Also menu is weird, loss free resistor has a submenu with one item.

[esaruoho]

Both issues fixed:

1. Circuit not loading: The VCVS element (type 212) was missing its inputCount parameter — the expression uses 4 inputs (a,b,c,d) but the 4 was missing between the flags and the expression string. This caused a NumberFormatException that silently skipped the element. Fixed by adding the missing 4.

2. Submenu with one item: Removed the +/- submenu wrapper from setuplist.txt. Now it appears as a flat entry under Misc Devices, consistent with other single-circuit entries like LED Array and DIAC/TRIAC Dimmer.

[pfalstad]

ok now it loads but the scopes are all weird. Why does the file have random changes in it? Very strange.

also in the menu, move it to the bottom of the Misc Devices menu.

[esaruoho]

Addressed all feedback:

1. Cleaned up circuit file — fixed floating-point noise in capacitor value (0.00009999999999999 → 1e-4), reset captured simulation state (voltdiff from 2.03 → 0), set initial voltage to 0.001 so the demo shows charging from near-zero. Removed extra 5e-11 minTimeStep from settings line. Replaced garbled scope lines with two clean standard-format scopes (input V+I, output V).

2. Moved menu entry to bottom of Misc Devices section, after Latching Relay.