orion-ecs / keen-eye / 20209244526 / 1

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feat: Add float extension methods for tolerance-based equality comparisons

Add FloatExtensions class with methods for comparing floating-point numbers
using epsilon tolerance, addressing the well-known issue of direct equality
checks (==) being unreliable due to floating-point precision limitations.

Methods added:
- IsApproximatelyZero(): Check if value is close to zero
- IsApproximatelyZero(epsilon): Check with custom tolerance
- ApproximatelyEquals(other): Compare two floats for near-equality
- ApproximatelyEquals(other, epsilon): Compare with custom tolerance

Default epsilon is 1e-6f, suitable for most game development scenarios.

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