Botan 2.19.5 Crypto and TLS for C&

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- __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES : certstor_macos.cpp
- __PASTE : pkcs11.h
- _BOTAN_UNUSED_GET_IMPL : assert.h
- _BOTAN_UNUSED_IMPL1 : assert.h
- _BOTAN_UNUSED_IMPL2 : assert.h
- _BOTAN_UNUSED_IMPL3 : assert.h
- _BOTAN_UNUSED_IMPL4 : assert.h
- _BOTAN_UNUSED_IMPL5 : assert.h
- _BOTAN_UNUSED_IMPL6 : assert.h
- _BOTAN_UNUSED_IMPL7 : assert.h
- _BOTAN_UNUSED_IMPL8 : assert.h
- _BOTAN_UNUSED_IMPL9 : assert.h
- _POSIX_C_SOURCE : proc_walk.cpp
- _WINSOCKAPI_ : es_win32.cpp, certstor_windows.cpp