Add Genesis 2 Cascade MoE - PyTorch neural network with shared neuron pool

[larionovavi-stack]

Description

Adding Genesis 2 to the list — a PyTorch-based Cascade MoE (Mixture of Experts) neural network with several notable properties:

• Shared neuron pool: all experts share a common neuron base, reducing redundancy
• Zero catastrophic forgetting: new knowledge is added without erasing previous training
• CPU-only inference at 18ms: runs efficiently without GPU at runtime
• 10,800+ experts: large-scale expert routing

Entry added (item 347)

347. [Genesis 2](https://github.com/larionovavi-stack/genesis2-cascade-moe) - Cascade MoE neural network built with PyTorch. Shared neuron pool, zero catastrophic forgetting, CPU-only inference (18ms), 10,800+ experts.

Fits the existing pattern of novel PyTorch architecture implementations in the list.