Enable choice in net fee, settable evm version

Signed-off-by: lash <dev@holbrook.no>
Signed-off-by: Mohammed Sohail <sohailsameja@gmail.com>

python/erc20_pool/data/DecimalQuote.metadata.json

@@ -1 +1 @@
-{"compiler":{"version":"0.8.25+commit.b61c2a91"},"language":"Solidity","output":{"abi":[{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_outToken","type":"address"},{"internalType":"address","name":"_inToken","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"valueFor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"}],"devdoc":{"kind":"dev","methods":{},"version":1},"userdoc":{"kind":"user","methods":{},"version":1}},"settings":{"compilationTarget":{"DecimalQuote.sol":"DecimalQuote"},"evmVersion":"istanbul","libraries":{},"metadata":{"bytecodeHash":"ipfs"},"optimizer":{"enabled":false,"runs":200},"remappings":[]},"sources":{"DecimalQuote.sol":{"keccak256":"0x4053ab914f5f3b89b17af0e091de359c808058461d12502cf53d495b5abc31b4","license":"AGPL-3.0-or-later","urls":["bzz-raw://496e4f4a2039dc9447d04db14ce8624b4caf2038cf017c56f632157a50f69cae","dweb:/ipfs/QmWDRaBfANxZrKb73AziafrbB5tZkgYjvd1ym1vGje47Ui"]}},"version":1}
+{"compiler":{"version":"0.8.21-develop.2024.4.15+commit.d9974bed"},"language":"Solidity","output":{"abi":[{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_outToken","type":"address"},{"internalType":"address","name":"_inToken","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"valueFor","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"}],"devdoc":{"kind":"dev","methods":{},"version":1},"userdoc":{"kind":"user","methods":{},"version":1}},"settings":{"compilationTarget":{"DecimalQuote.sol":"DecimalQuote"},"evmVersion":"byzantium","libraries":{},"metadata":{"bytecodeHash":"ipfs"},"optimizer":{"enabled":false,"runs":200},"remappings":[]},"sources":{"DecimalQuote.sol":{"keccak256":"0x4053ab914f5f3b89b17af0e091de359c808058461d12502cf53d495b5abc31b4","license":"AGPL-3.0-or-later","urls":["bzz-raw://496e4f4a2039dc9447d04db14ce8624b4caf2038cf017c56f632157a50f69cae","dweb:/ipfs/QmWDRaBfANxZrKb73AziafrbB5tZkgYjvd1ym1vGje47Ui"]}},"version":1}