Release v0.2.1

What's Changed

• bump current version info by @brunocampos-ssa in #70
• Feat/transaction from raw by @pedrxlz in #65
• fix: npm package version sh by @pedrxlz in #71
• fix: trx from raw transaction type by @pedrxlz in #72
• Refactor/kos by @pedrxlz in #77
• evm custom network by @pedrxlz in #79
• Bump version 0.2.0 by @pedrxlz in #80
• Promote new version by @pedrxlz in #81

Full Changelog: v0.1.2...v0.2.1