For example, if a user does
```
cmake -DCMAKE_C_FLAGS="-DWOLFSSL_AESGCM_STREAM -DFP_MAX_BITS=16384" ..
```
definitions for `WOLFSSL_AESGCM_STREAM` and `FP_MAX_BITS 16384` should wind up
in options.h (same as the autotools build).
- `HAVE_SECRET_CALLBACK` needs to have `wolfSSL_SSL_CTX_get_timeout` and `wolfSSL_SSL_get_timeout` available
- Call `wolfSSL_KeepArrays` for `HAVE_SECRET_CALLBACK`
- Increase the default `DTLS_MTU_ADDITIONAL_READ_BUFFER` and make it adjustable by the user
- Don't truncate application data returned to user in `wolfSSL_read_internal`
* copy missing files from wolfssl/wolfcrypt/benchmark
* instead of GitHub copy, update setup to perform the copy of ESP-IDF benchmark files; add --verbose option
* update setup to perform the copy of ESP-IDF benchmark files; add --verbose option
* copy benchmark.c / benchmark.h at setup time
* Fixes for building with Ed/Curve25519 only. Fix for IoT safe demo to exit after running once. Added `WOLFSSL_DH_EXTRA` to `--enable-all` and `--enable-sniffer`. Cleanup uses of `==` in configure.ac. Various spelling fixes.
* Fix for sniffer with TLS v1.3 session tickets.
* Fix for ASN Template Ed25519 key export (missing version / not setting OID correctly).
* Add key import/export support for Curve25519/Curve448. Refactor of the 25519/448 ASN code to combine duplicate code.
* Refactor of Curve25519 code. Improved public key export to handle generation when only private is set. Improved private scalar buffer sizing.
* Fix for static ephemeral loading of file buffer.
* Added sniffer Curve25519 support and test case.
* Fix for sniffer to not use ECC for X25519 if both are set.
* Fix Curve448 public export when only private is set.
* Fix for `dh_generate_test` for small stack size.
* Reduce stack size use on new asymmetric DER import/export functions. Cleanup pub length calc.
* Fix invalid comment.
wolfSSL_Rehandshake(): don't set 'ret' unless HAVE_SESSION_TICKET
defined (otherwise compiler will complain: warning: Value stored to
'ret' is never read)
AES GCM streaming: fix 64-bit word version to compile and pass testing
Use '--enable-aesgcm=word' to get the word32 or word64 implementation
depending on the availabilty of 64-bit type.
