v0.2: audit fixes

What's Changed

• Fix possible overflows by @ShadoySV in #8
• on ci by @ilyar in #12
• Migration fixes by @ipavlov93 in #10
• Bugfix: rounding issue by @wedancedalot in #17
• Duplicated pair info fields in factory and pair contracts by @ipavlov93 in #13
• Feature/replacing sub messages and hooks by @ipavlov93 in #18
• Added asserts by @P-Yevhenii in #19
• feat: remove init_hook by @wedancedalot in #20
• feat: add withdraw integration test by @wedancedalot in #21

New Contributors

• @ShadoySV made their first contribution in #8
• @ilyar made their first contribution in #12
• @ipavlov93 made their first contribution in #10
• @P-Yevhenii made their first contribution in #19

Full Changelog: v0.1...v0.2

v0.1: pre-audit code freeze

delete comments code