Add additional polygon native token address check

[shunkakinoki]

Polygon chain has alias for https://polygonscan.com/address/0x0000000000000000000000000000000000001010 as the native token address, (bytecode doesn't exist, but is a precompile for erc20 compatibility)

[Copilot]

Pull request overview

This PR adds support for recognizing Polygon's native token precompile address (0x0000000000000000000000000000000000001010) as a native token address in the IsNativeTokenAddress() method. This address is a Polygon-specific precompile that provides ERC20 compatibility for native token transfers without bytecode.

Changes:

• Added Polygon native token address check to IsNativeTokenAddress() function in lib/prototyp/hash.go

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[Copilot]

Indentation is inconsistent with the rest of the function. The previous lines use a single tab character for indentation, but this line uses spaces. Change the leading whitespace to use a single tab character to match lines 144-146.

Suggested change

	h == "0x0000000000000000000000000000000000001010"
	h == "0x0000000000000000000000000000000000001010"

[Copilot]

The new Polygon native token address check lacks test coverage. The lib/prototyp package has comprehensive test coverage for other functions (e.g., bigint_test.go has 242 lines, hash_test.go exists with tests for other Hash methods), but IsNativeTokenAddress has no tests. Add test cases that verify all four native token addresses are correctly recognized, including the newly added Polygon address 0x0000000000000000000000000000000000001010.