Add OTLP exporter constructors for convenience

[raphael]

No description provided.

[codecov-commenter]

Codecov Report

Attention: 13 lines in your changes are missing coverage. Please review.

Comparison is base (2a06abd) 93.74% compared to head (24ce07b) 93.24%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
clue/exporters.go	75.00%	8 Missing and 4 partials ⚠️
clue/config.go	66.66%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #353      +/-   ##
==========================================
- Coverage   93.74%   93.24%   -0.50%     
==========================================
  Files          31       32       +1     
  Lines        1774     1822      +48     
==========================================
+ Hits         1663     1699      +36     
- Misses         92      100       +8     
- Partials       19       23       +4     

Flag	Coverage Δ
micro	93.24% <74.50%> (-0.50%)	⬇️

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