Capture target output, allow Loader reuse

[ranweiler]

• Add an OS-generic CoverageRecorder builder for recording coverage from common parameters
• Capture the output of the target child process when recording coverage
• Enable Loader reuse for when coverage is recorded many times for the same target

[codecov-commenter]

Codecov Report

Merging #2716 (694e01f) into main (f7bd508) will decrease coverage by 3.18%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2716      +/-   ##
==========================================
- Coverage   28.57%   25.39%   -3.19%     
==========================================
  Files         319      123     -196     
  Lines       38026    12889   -25137     
==========================================
- Hits        10866     3273    -7593     
+ Misses      27160     9616   -17544     

Impacted Files	Coverage Δ
src/agent/coverage/src/lib.rs
src/agent/coverage/src/record/linux.rs
src/agent/coverage/src/record/linux/debugger.rs
src/agent/coverage/src/record/windows.rs
...efuzz-task/src/tasks/generic/input_poller/tests.rs
src/agent/onefuzz/src/input_tester.rs
src/agent/onefuzz/src/triage.rs
src/agent/onefuzz-agent/src/reboot/double.rs
...c/agent/onefuzz-task/src/local/generic_analysis.rs
src/agent/stacktrace-parser/src/lib.rs
... and 186 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.