add pg ci

[codecov-commenter]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (df5f9d7) 40.09% compared to head (7b4ae7c) 39.95%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #122 +/- ## ========================================== - Coverage 40.09% 39.95% -0.14% ========================================== Files 22 22 Lines 2871 2868 -3 ========================================== - Hits 1151 1146 -5 - Misses 1720 1722 +2 ``` | [Files](https://app.codecov.io/gh/qicosmos/ormpp/pull/122?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qicosmos) | Coverage Δ | | |---|---|---| | [include/type\_mapping.hpp](https://app.codecov.io/gh/qicosmos/ormpp/pull/122?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qicosmos#diff-aW5jbHVkZS90eXBlX21hcHBpbmcuaHBw) | `100.00% <ø> (ø)` | | | [include/utility.hpp](https://app.codecov.io/gh/qicosmos/ormpp/pull/122?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qicosmos#diff-aW5jbHVkZS91dGlsaXR5LmhwcA==) | `97.89% <ø> (ø)` | | | [tests/test\_ormpp.cpp](https://app.codecov.io/gh/qicosmos/ormpp/pull/122?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qicosmos#diff-dGVzdHMvdGVzdF9vcm1wcC5jcHA=) | `95.21% <100.00%> (ø)` | | ... and [2 files with indirect coverage changes](https://app.codecov.io/gh/qicosmos/ormpp/pull/122/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=qicosmos)

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