oRTP 4.3.0

- B64_F_LINE_LEN_64 : b64.h
- B64_F_LINE_LEN_76 : b64.h
- B64_F_LINE_LEN_INFINITE : b64.h
- B64_F_LINE_LEN_MASK : b64.h
- B64_F_LINE_LEN_USE_PARAM : b64.h
- B64_F_STOP_ON_BAD_CHAR : b64.h
- B64_F_STOP_ON_NOTHING : b64.h
- B64_F_STOP_ON_UNEXPECTED_WS : b64.h
- B64_F_STOP_ON_UNKNOWN_CHAR : b64.h
- B64_RC_DATA_ERROR : b64.h
- B64_RC_INSUFFICIENT_BUFFER : b64.h
- B64_RC_OK : b64.h
- B64_RC_TRUNCATED_INPUT : b64.h
- OrtpNetworkSimulatorInbound : rtpsession.h
- OrtpNetworkSimulatorOutbound : rtpsession.h
- OrtpNetworkSimulatorOutboundControlled : rtpsession.h