feat(modmanager): add attribute to ModFolder for skipping existing archives

[mklokocka]

Add an optional attribute for the ModFolder class to skip processing existing archives.

In particular, the use case I have in mind is running CAO on the MO2 virtual file system, which can include at the very least base game archives, but also archives from mods etc.

A scenario in which this could be helpful is when the user wants to process and pack multiple mods together - not as single mods. Using MO2 VFS ensures proper conflict resolution between loose files. In those cases the user probably wouldn't want to touch the base game (or modded) BSAs.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 80.52%. Comparing base (de993e5) to head (4cea141).

Additional details and impacted files

[](https://app.codecov.io/gh/Guekka/bethutil/pull/55?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar) ```diff @@ Coverage Diff @@ ## dev #55 +/- ## ========================================== + Coverage 80.49% 80.52% +0.03% ========================================== Files 38 38 Lines 1712 1715 +3 ========================================== + Hits 1378 1381 +3 Misses 334 334 ``` | [Files](https://app.codecov.io/gh/Guekka/bethutil/pull/55?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar) | Coverage Δ | | |---|---|---| | [include/btu/modmanager/mod\_folder.hpp](https://app.codecov.io/gh/Guekka/bethutil/pull/55?src=pr&el=tree&filepath=include%2Fbtu%2Fmodmanager%2Fmod_folder.hpp&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar#diff-aW5jbHVkZS9idHUvbW9kbWFuYWdlci9tb2RfZm9sZGVyLmhwcA==) | `0.00% <ø> (ø)` | | | [src/modmanager/mod\_folder.cpp](https://app.codecov.io/gh/Guekka/bethutil/pull/55?src=pr&el=tree&filepath=src%2Fmodmanager%2Fmod_folder.cpp&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar#diff-c3JjL21vZG1hbmFnZXIvbW9kX2ZvbGRlci5jcHA=) | `86.36% <100.00%> (+0.38%)` | :arrow_up: | ------ [Continue to review full report in Codecov by Sentry](https://app.codecov.io/gh/Guekka/bethutil/pull/55?dropdown=coverage&src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar). > **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar) > `Δ = absolute (impact)`, `ø = not affected`, `? = missing data` > Powered by [Codecov](https://app.codecov.io/gh/Guekka/bethutil/pull/55?dropdown=coverage&src=pr&el=footer&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar). Last update [de993e5...4cea141](https://app.codecov.io/gh/Guekka/bethutil/pull/55?dropdown=coverage&src=pr&el=lastupdated&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Edgar).

[mklokocka]

Hmm, I should probably move this over to dev branch (again).

Also comparing formatting from CI to the VS shipped clang-format and a standalone binary results I should start getting proper formatting with the standalone (hopefully).