Use cbor.SortCoreDeterministic for CBOR encoding

[qmuntal]

Fixes #110

[codecov[bot]]

Codecov Report

Merging #113 (b2a1e5f) into main (77e3f9f) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #113   +/-   ##
=======================================
  Coverage   91.79%   91.79%           
=======================================
  Files          10       10           
  Lines         975      975           
=======================================
  Hits          895      895           
  Misses         54       54           
  Partials       26       26           

Impacted Files	Coverage Δ
cbor.go	84.21% <100.00%> (ø)

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[shizhMSFT]

@qmuntal The notation-core-go project works well with the go-cose in this PR as confirmed by @patrickzheng200.

[qmuntal]

@thomas-fossati @yogeshbdeshpande PTAL

[qmuntal]

Can this be merged? Thanks!