v6.1.1

Contributed:

• Adjust Polymath genesis in @polkadot/networks (Thanks to https://github.com/adamdossa)
• Adjust @polkadot/util logger for +/-/* compat (Thanks to https://github.com/Lezek123)
• Fix typo in @polkadot/util detect messaging (Thanks to https://github.com/amphineko)

Changes:

• Remove @polkadot/networks code duplication, manages data via script from upstream
• Align ss58 registry with upstream Substrate