Add Quine-McCluskey algorithm examples and documentation

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Implements Quine-McCluskey algorithm section to complement existing Karnaugh Map examples. QM is a systematic tabular method for Boolean minimization that scales beyond K-map's 4-6 variable limit.

Implementation

New directory: 3.Circuits/Combinational Logic/Quine-McCluskey/

7 Verilog examples demonstrating varying complexity:

• 3-variable, 4-variable, and 5-variable functions
• Majority function (≥2 of 3 inputs)
• Complex function with limited simplification opportunity
• Prime implicant demonstration

Comprehensive README.md covering:

• Algorithm methodology (finding prime implicants, selecting minimal cover)
• QM vs K-map comparison table
• Per-example documentation with minterms and minimized forms

Example

// 5-variable function - demonstrates QM advantage over K-maps
// Minterms: 0,1,4,5,8,9,12,13,16,17,20,21
// Minimized: a'c'e' + a'c'd' + ab'c'
module top_module(
    input a, b, c, d, e,
    output out
);
    assign out = (~a&~c&~e) | (~a&~c&~d) | (a&~b&~c);
endmodule

All examples follow existing top_module naming convention and pass iverilog syntax validation.

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Original prompt

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This section details on the original issue you should resolve

<issue_title>Quine–McCluskey</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Quine–McCluskey #34

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