Add Support for critical extension check following RFC 5280 4.2.2.1

[Keinahas]

Description

Problem:

• RFC 5280 4.2.2.1 Says Conforming CAs MUST mark Authority Information Access Extension as non-critical.
• Description of function DecodeAuthKeyId had wrong section (RFC 5280 4.2.2.1 - AuthInfo)
• Description of function DecodeSubjKeyId had wrong section (RFC 5280 4.2.2.1 - AuthInfo)
• Description of function DecodeKeyUsage had wrong section (RFC 5280 4.2.2.1 - AuthInfo)

Fix:

• added Critical check of Authority Information Access Extension in function DecodeExtensionType
• fixed Description of function DecodeAuthKeyId to RFC 5280 4.2.1.1 - Authority Key Identifier
• fixed Description of function DecodeSubjKeyId to RFC 5280 4.2.1.2 - Subject Key Identifier
• fixed Description of function DecodeKeyUsage to RFC 5280 4.2.1.3 - Key Usage
• added AuthInfo fix to Changelog

Fixes #5635

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation

[wolfSSL-Bot]

Can one of the admins verify this patch?

[embhorn]

Hi @Keinahas

Thanks for these improvements!

We do not typically accept small changes from new contributors. Do you anticipate making more changes in the wolfSSL project? If not I can open a new PR to incorporate these fixes.

Otherwise please send an email referencing this PR to support@wolfssl.com requesting a Contributor Agreement form.

Thanks,
@embhorn
wolfSSL Support

[embhorn]

Closing in favor of #6646