Add wolfcrypt/src/wolfssl_sources.h and wolfcrypt/src/wolfssl_sources_asm.h,

which force on BUILDING_WOLFSSL and do boilerplate includes, and update library
  sources to include them at the top.

  wolfssl_sources.h includes types.h, error-crypt.h, and logging.h, and
  conditionally, config.h.  settings.h and wc_port.h are unconditionally
  included at the top of types.h.

  wolfssl_sources_asm.h includes settings.h, and conditionally, config.h.

Add wolfssl_sources*.h to wolfcrypt/src/include.am, and to several IDE/ project
  files.

Also added a TEST_WOLFSSL_SOURCES_INCLUSION_SEQUENCE clause in
  wolfssl/wolfcrypt/settings.h to allow coverage testing.

In wolfcrypt/src/misc.c, retain existing ad hoc boilerplate includes, and use
  them if WOLFSSL_VIS_FOR_TESTS, otherwise include the new wolfssl_sources.h.

Define WOLFSSL_VIS_FOR_TESTS at top of wolfcrypt/test/test.c.

Also renamed WOLFSSL_NEED_LINUX_CURRENT to WOLFSSL_LINUXKM_NEED_LINUX_CURRENT,
  for clarity.

tests/api/test_wc_encrypt.c

@@ -19,14 +19,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
  */
 
-#ifdef HAVE_CONFIG_H
-    #include <config.h>
-#endif
-
-#if !defined(WOLFSSL_USER_SETTINGS) && !defined(WOLFSSL_NO_OPTIONS_H)
-    #include <wolfssl/options.h>
-#endif
-#include <wolfssl/wolfcrypt/settings.h>
+#include <tests/unit.h>
 
 #ifdef NO_INLINE
     #include <wolfssl/wolfcrypt/misc.h>
@@ -37,7 +30,6 @@
 
 #include <wolfssl/wolfcrypt/wc_encrypt.h>
 #include <wolfssl/wolfcrypt/types.h>
-#include <tests/unit.h>
 #include <tests/api/api.h>
 #include <tests/api/test_wc_encrypt.h>