Guus/param var conv

[guusw]

Cleanup and fix various warnings (update spdlog due to some)

[codecov]

Codecov Report

Attention: Patch coverage is 78.02817% with 78 lines in your changes missing coverage. Please review.

Project coverage is 77.66%. Comparing base (825f79b) to head (5915a5f).
Report is 15 commits behind head on devel.

Files with missing lines	Patch %	Lines
shards/modules/core/core.cpp	79.06%	27 Missing ⚠️
shards/core/ops_internal.hpp	47.05%	9 Missing ⚠️
shards/core/check_utils.hpp	61.53%	5 Missing ⚠️
shards/core/coro_annotations.inl	90.24%	4 Missing ⚠️
shards/core/foundation.hpp	60.00%	4 Missing ⚠️
shards/core/exception.hpp	0.00%	3 Missing ⚠️
shards/core/runtime.cpp	40.00%	3 Missing ⚠️
shards/gfx/fmt.hpp	25.00%	3 Missing ⚠️
shards/modules/core/core.hpp	91.89%	3 Missing ⚠️
shards/gfx/error_utils.hpp	0.00%	2 Missing ⚠️
... and 11 more

Additional details and impacted files

@@            Coverage Diff             @@
##            devel    #1146      +/-   ##
==========================================
- Coverage   77.77%   77.66%   -0.11%     
==========================================
  Files         379      383       +4     
  Lines       59190    59048     -142     
==========================================
- Hits        46035    45861     -174     
- Misses      13155    13187      +32     

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