Separate the HKDF classes dependent on external modules from the independent base class.

[dajiaji]

No description provided.

[codecov-commenter]

Codecov Report

Merging #212 (e650afc) into main (b0c9aaf) will decrease coverage by 0.78%.
The diff coverage is 98.90%.

@@            Coverage Diff             @@
##             main     #212      +/-   ##
==========================================
- Coverage   96.90%   96.13%   -0.78%     
==========================================
  Files          26       29       +3     
  Lines        2427     2485      +58     
  Branches      216      217       +1     
==========================================
+ Hits         2352     2389      +37     
- Misses         75       96      +21     

Flag	Coverage Δ
unittests	96.13% <98.90%> (-0.78%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
src/kdfs/hkdf.ts	86.22% <80.00%> (-12.72%)	⬇️
src/cipherSuite.ts	100.00% <100.00%> (ø)
src/kdfs/hkdfSha256.ts	100.00% <100.00%> (ø)
src/kdfs/hkdfSha384.ts	100.00% <100.00%> (ø)
src/kdfs/hkdfSha512.ts	100.00% <100.00%> (ø)
src/kems/dhkemP256.ts	100.00% <100.00%> (ø)
src/kems/dhkemP384.ts	100.00% <100.00%> (ø)
src/kems/dhkemP521.ts	100.00% <100.00%> (ø)
src/kems/dhkemX25519.ts	100.00% <100.00%> (ø)
src/kems/dhkemX448.ts	100.00% <100.00%> (ø)