pre-release v1.20.0rc1

What's Changed

• Main to dev by @longshuicy in #587
• Apply black formatter by @ylyangtw in #590
• remove insecure client by @longshuicy in #592
• Interdependent recovery of residential buildings and households by @ylyangtw in #606
• 585 indp solver failed by @longshuicy in #591
• need to preserve original functions docstring by @longshuicy in #593
• 609 create internal client by @longshuicy in #610
• change dict to list to respect order by @longshuicy in #615

Full Changelog: v1.19.0...v1.20.0rc1