Moved CertManager APIs into own file

Split out certificate manager APIs into ssl_certman.c.
ssl.c includes ssl_certman.c
Better test coverage.
Minor fixes.
wolfSSL_X509_chain_up_ref calls XFREE with name->heap but name may be
NULL. Check for NULL first.

.gitignore

@@ -85,6 +85,7 @@ testsuite/testsuite.test
 tests/unit.test
 tests/bio_write_test.txt
 tests/test-log-dump-to-file.txt
+tests/cert_cache.tmp
 test-write-dhparams.pem
 testsuite/*.der
 testsuite/*.pem

IDE/Espressif/ESP-IDF/examples/wolfssl_benchmark/components/wolfssl/CMakeLists.txt

@@ -192,6 +192,7 @@ set(COMPONENT_SRCEXCLUDE
     "${WOLFSSL_ROOT}/src/pk.c"
     "${WOLFSSL_ROOT}/src/ssl_asn1.c" # included by ssl.c
     "${WOLFSSL_ROOT}/src/ssl_bn.c" # included by ssl.c
+    "${WOLFSSL_ROOT}/src/ssl_certman.c" # included by ssl.c
     "${WOLFSSL_ROOT}/src/ssl_misc.c" # included by ssl.c
     "${WOLFSSL_ROOT}/src/x509.c"
     "${WOLFSSL_ROOT}/src/x509_str.c"

src/include.am

@@ -21,6 +21,7 @@ EXTRA_DIST += src/conf.c
 EXTRA_DIST += src/pk.c
 EXTRA_DIST += src/ssl_asn1.c
 EXTRA_DIST += src/ssl_bn.c
+EXTRA_DIST += src/ssl_certman.c
 EXTRA_DIST += src/ssl_misc.c
 EXTRA_DIST += src/x509.c
 EXTRA_DIST += src/x509_str.c