Reorganize more of the repository's unit tests

[QMalcolm]

Addresses: #9961

Problem

Unit tests test specific functions or classes. As such it really makes sense for unit tests to live in files that mirror the file paths of the source code being tested.

Solution

This PR moves

• test_retry.py
• test_manager.py
• test_option_types.py
• test_manifest.py
• test_macro_resolver.py

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX
• This PR includes type annotations for new and modified functions

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.14%. Comparing base (f6b2cb7) to head (e30eeb7).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10060      +/-   ##
==========================================
- Coverage   88.20%   88.14%   -0.06%     
==========================================
  Files         181      181              
  Lines       22665    22665              
==========================================
- Hits        19991    19978      -13     
- Misses       2674     2687      +13     

Flag	Coverage Δ
integration	85.44% <ø> (-0.13%)	⬇️
unit	62.31% <ø> (ø)

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