Implment a dimacs parser

[codecov[bot]]

Codecov Report

Attention: 11 lines in your changes are missing coverage. Please review.

Comparison is base (84c5b5a) 73.66% compared to head (ea3e0fe) 76.13%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #14 +/- ## ========================================== + Coverage 73.66% 76.13% +2.47% ========================================== Files 13 16 +3 Lines 1177 1345 +168 Branches 856 981 +125 ========================================== + Hits 867 1024 +157 - Misses 168 202 +34 + Partials 142 119 -23 ``` | [Flag](https://app.codecov.io/gh/michael-veksler/solver/pull/14/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler) | Coverage Δ | | |---|---|---| | [Linux](https://app.codecov.io/gh/michael-veksler/solver/pull/14/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler) | `32.52% <44.44%> (+1.62%)` | :arrow_up: | | [Windows](https://app.codecov.io/gh/michael-veksler/solver/pull/14/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler) | `83.63% <100.00%> (+2.48%)` | :arrow_up: | | [macOS](https://app.codecov.io/gh/michael-veksler/solver/pull/14/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler) | `32.72% <45.13%> (+1.78%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler#carryforward-flags-in-the-pull-request-comment) to find out more. | [Files](https://app.codecov.io/gh/michael-veksler/solver/pull/14?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler) | Coverage Δ | | |---|---|---| | [include/solver/dimacs\_parser.hpp](https://app.codecov.io/gh/michael-veksler/solver/pull/14?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler#diff-aW5jbHVkZS9zb2x2ZXIvZGltYWNzX3BhcnNlci5ocHA=) | `90.47% <90.47%> (ø)` | | | [test/test\_dimacs\_parser.cpp](https://app.codecov.io/gh/michael-veksler/solver/pull/14?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler#diff-dGVzdC90ZXN0X2RpbWFjc19wYXJzZXIuY3Bw) | `97.84% <97.84%> (ø)` | | | [src/solver\_library/dimacs\_parser.cpp](https://app.codecov.io/gh/michael-veksler/solver/pull/14?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler#diff-c3JjL3NvbHZlcl9saWJyYXJ5L2RpbWFjc19wYXJzZXIuY3Bw) | `87.03% <87.03%> (ø)` | | ... and [2 files with indirect coverage changes](https://app.codecov.io/gh/michael-veksler/solver/pull/14/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Michael+Veksler)

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