Expose MSACBinary and MSACThread as they are props of MSACErrorReport

[DmitriyKirakosyan]

Things to consider before you submit the PR:

• [ ] Has CHANGELOG.md been updated?
• [ ] Are tests passing locally?
• [ ] Are the files formatted correctly?
• [ ] Did you add unit tests?
• [ ] Did you check UI tests on the sample app? They are not executed on CI.
• [ ] Did you test your change with either the sample apps that are included in the repository or with a blank app that uses your change?

Description

This PR makes MSACBinary and MSACThread public classes, as they are part of public API of MSACErrorReport.

Related PRs or issues

[codecov[bot]]

Codecov Report

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

Project coverage is 94.96%. Comparing base (8b039c9) to head (ea2a0f6).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #2549 +/- ## =========================================== + Coverage 94.88% 94.96% +0.07% =========================================== Files 141 100 -41 Lines 13324 8615 -4709 =========================================== - Hits 12643 8181 -4462 + Misses 681 434 -247 ``` | [Flag](https://app.codecov.io/gh/microsoft/appcenter-sdk-apple/pull/2549/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=microsoft) | Coverage Δ | | |---|---|---| | [MacCatalyst](https://app.codecov.io/gh/microsoft/appcenter-sdk-apple/pull/2549/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=microsoft) | `94.34% <ø> (-0.12%)` | :arrow_down: | | [iOS](https://app.codecov.io/gh/microsoft/appcenter-sdk-apple/pull/2549/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=microsoft) | `95.13% <ø> (+0.19%)` | :arrow_up: | | [macOS](https://app.codecov.io/gh/microsoft/appcenter-sdk-apple/pull/2549/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=microsoft) | `94.08% <ø> (-0.23%)` | :arrow_down: | | [tvOS](https://app.codecov.io/gh/microsoft/appcenter-sdk-apple/pull/2549/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=microsoft) | `94.22% <ø> (-0.09%)` | :arrow_down: | 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=microsoft#carryforward-flags-in-the-pull-request-comment) to find out more.

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