Added Cfront mode, an educational C++ to C transformation.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 97.83743% with 29 lines in your changes are missing coverage. Please review.

Project coverage is 97.94%. Comparing base (069207d) to head (4459e00).

Files	Patch %	Lines
CfrontCodeGenerator.cpp	97.49%	10 Missing :warning:
ASTHelpers.cpp	96.80%	8 Missing :warning:
CodeGenerator.cpp	98.27%	6 Missing :warning:
InsightsHelpers.cpp	97.22%	2 Missing :warning:
InsightsHelpers.h	92.59%	2 Missing :warning:
LifetimeTracker.cpp	98.36%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #611 +/- ## ========================================== - Coverage 97.98% 97.94% -0.05% ========================================== Files 23 27 +4 Lines 4164 5051 +887 ========================================== + Hits 4080 4947 +867 - Misses 84 104 +20 ``` | [Flag](https://app.codecov.io/gh/andreasfertig/cppinsights/pull/611/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Andreas+Fertig) | Coverage Δ | | |---|---|---| | [ubuntu](https://app.codecov.io/gh/andreasfertig/cppinsights/pull/611/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Andreas+Fertig) | `97.88% <97.83%> (+0.04%)` | :arrow_up: | | [ubuntu-libcxx](https://app.codecov.io/gh/andreasfertig/cppinsights/pull/611/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Andreas+Fertig) | `97.94% <97.83%> (-0.05%)` | :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=Andreas+Fertig#carryforward-flags-in-the-pull-request-comment) to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.