Collect warnings (as $notes) in nonmem2rx

[codecov[bot]]

Codecov Report

Patch coverage: 86.01% and project coverage change: +0.03 :tada:

Comparison is base (b8389de) 90.84% compared to head (0f3775a) 90.87%.

:exclamation: Current head 0f3775a differs from pull request most recent head 5a13b96. Consider uploading reports for the commit 5a13b96 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #126 +/- ## ========================================== + Coverage 90.84% 90.87% +0.03% ========================================== Files 50 51 +1 Lines 6149 6172 +23 ========================================== + Hits 5586 5609 +23 Misses 563 563 ``` | [Impacted Files](https://app.codecov.io/gh/nlmixr2/nonmem2rx/pull/126?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2) | Coverage Δ | | |---|---|---| | [R/nonmem2rx.R](https://app.codecov.io/gh/nlmixr2/nonmem2rx/pull/126?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9ub25tZW0ycnguUg==) | `85.30% <85.07%> (+0.15%)` | :arrow_up: | | [R/collectWarn.R](https://app.codecov.io/gh/nlmixr2/nonmem2rx/pull/126?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9jb2xsZWN0V2Fybi5S) | `100.00% <100.00%> (ø)` | | | [R/print.R](https://app.codecov.io/gh/nlmixr2/nonmem2rx/pull/126?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9wcmludC5S) | `100.00% <100.00%> (ø)` | |

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