Add AES-CBC-HMAC AEAD cipher to Dapr crypto

[ItalyPaleAle]

This PR adds support for AES-CBC-HMAC in the Dapr crypto package, which is an AEAD cipher based on AES-CBC.

This code is needed by both the crypto building block (dapr/proposals#3) and the Dapr state store encryption v2 (dapr/dapr#6027)

Includes:

• Adding the AES-CBC-HMAC cipher in the package crypto/aescbcaead, implemented according to draft RFC and RFC 7518 Section 5.
• Adds support for these algorithms when using encryption with local storage components. JWA (JSON Web Algorithm) identifiers are:
  • A128CBC-HS256
  • A192CBC-HS384
  • A256CBC-HS512

[codecov-commenter]

Codecov Report

Merging #40 (3b124d7) into main (b5bafe8) will decrease coverage by 0.64%.
The diff coverage is 74.04%.

@@            Coverage Diff             @@
##             main      #40      +/-   ##
==========================================
- Coverage   80.64%   80.01%   -0.64%     
==========================================
  Files          25       26       +1     
  Lines        1354     1481     +127     
==========================================
+ Hits         1092     1185      +93     
- Misses        197      217      +20     
- Partials       65       79      +14     

Impacted Files	Coverage Δ
crypto/padding/pkcs7_padding.go	100.00% <ø> (ø)
crypto/symmetric.go	51.41% <50.00%> (-1.70%)	⬇️
crypto/aescbcaead/aescbcaead.go	83.15% <83.15%> (ø)

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