Output image info for LLDB debugging

[ttreyer]

Summary

When the GenJitDebug feature is enabled, output the relocation information of the JIT code to enable debugging with LLDB.

Test plan

$ lldb -- $OI/build/test/integration/integration_test_target oil folly_small_vector_int_default_overflow $OI/build/testing.oid.toml
(lldb) b oi::detail::OICompiler::applyRelocs
(lldb) e config.features[Feature::GenJitDebug] = true
(lldb) finish
...

[codecov-commenter]

Codecov Report

Merging #350 (0e38b97) into main (8dd1182) will decrease coverage by 0.03%.
Report is 2 commits behind head on main.
The diff coverage is 62.50%.

@@            Coverage Diff             @@
##             main     #350      +/-   ##
==========================================
- Coverage   68.01%   67.98%   -0.03%     
==========================================
  Files         114      114              
  Lines       11138    11168      +30     
  Branches     1864     1869       +5     
==========================================
+ Hits         7575     7593      +18     
- Misses       2595     2602       +7     
- Partials      968      973       +5     

Files Changed	Coverage Δ
oi/OICompiler.cpp	79.29% <62.50%> (-2.04%)	⬇️

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