fix missing exports on Windows

[apwojcik]

A few missing EXPORTS were revealed after rebasing to the top of the develop branch.

[codecov]

Codecov Report

Merging #2327 (a4cea55) into develop (05e3659) will decrease coverage by 0.13%.
Report is 2 commits behind head on develop.
The diff coverage is 59.72%.

❗ Current head a4cea55 differs from pull request most recent head 4ce00cf. Consider uploading reports for the commit 4ce00cf to get more accurate results

@@             Coverage Diff             @@
##           develop    #2327      +/-   ##
===========================================
- Coverage    91.45%   91.32%   -0.13%     
===========================================
  Files          433      434       +1     
  Lines        16174    16245      +71     
===========================================
+ Hits         14792    14836      +44     
- Misses        1382     1409      +27     

Files	Coverage Δ
src/onnx/padding.cpp	98.21% <100.00%> (ø)
src/onnx/parse_qlinearconv.cpp	59.15% <59.15%> (ø)

... and 1 file with indirect coverage changes