#98: Change `InsertBatch` to accept slice of structs

[codecov[bot]]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (c24cf22) 79.91% compared to head (a6b78ca) 80.06%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #99 +/- ## ========================================== + Coverage 79.91% 80.06% +0.15% ========================================== Files 7 7 Lines 1195 1204 +9 ========================================== + Hits 955 964 +9 + Misses 177 175 -2 - Partials 63 65 +2 ``` | [Files](https://app.codecov.io/gh/arthurkushman/buildsqlx/pull/99?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Arthur+Kushman) | Coverage Δ | | |---|---|---| | [factory.go](https://app.codecov.io/gh/arthurkushman/buildsqlx/pull/99?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Arthur+Kushman#diff-ZmFjdG9yeS5nbw==) | `69.59% <87.09%> (+0.50%)` | :arrow_up: |

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