Add a runtime option to enable or disable the secure renegotation check.

[kareem-wolfssl]

Description

Send no_renegotiation alert when rejecting renegotation attempt as defined in RFC 5246 section 7.2.2.
Fixes zd#19378

Testing

Built in tests

Checklist

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

[devin-ai-integration]

🛟 Devin Lifeguard found 2 likely issues in this PR

• use-c-style-comments snippet: Replace the “// SCR check is enabled” (and similar) lines in the code examples with C-style comments, e.g. “/* SCR check is enabled */”.
• declare-const-pointers snippet snippet: Change wolfSSL_get_scr_check_enabled signature to int wolfSSL_get_scr_check_enabled(const WOLFSSL* ssl) (and similarly make the ssl and ctx parameters in test_SCR_check_remove_ext_io_cb const) since they are not modified within the functions.

@kareem-wolfssl
please take a look at the above issues which Devin flagged. Devin will not fix these issues automatically.