Create a Nimlang library

Nim translates easily to JS, Go, C, and Objective-C.

The issue mentions Nim's translation capabilities but does not specify what the library should do or how it integrates with the existing Python blockchain. Start by examining the repository structure to understand the existing modules and interfaces. Determine what functionality a Nim library should provide, such as performance-critical components or bindings. Look for any existing build or integration patterns in the project.

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