call: add toUsername to call details

This allow client to differentiate between incoming 1:1 call and
call swarm from one contact

Change-Id: I42ac6f85659fefe9501e8dfe01e07a003ddd503d

src/call.cpp

@@ -377,6 +377,7 @@ Call::getDetails() const
         {libjami::Call::Details::CONF_ID, conference ? conference->getConfId() : ""},
         {libjami::Call::Details::TIMESTAMP_START, std::to_string(timestamp_start_)},
         {libjami::Call::Details::ACCOUNTID, getAccountId()},
+        {libjami::Call::Details::TO_USERNAME, toUsername()},
         {libjami::Call::Details::AUDIO_MUTED,
          std::string(bool_to_str(isCaptureDeviceMuted(MediaType::MEDIA_AUDIO)))},
         {libjami::Call::Details::VIDEO_MUTED,

src/jami/call_const.h

@@ -52,6 +52,7 @@ constexpr static char DISPLAY_NAME[] = "DISPLAY_NAME";
 constexpr static char CALL_STATE[] = "CALL_STATE";
 constexpr static char CONF_ID[] = "CONF_ID";
 constexpr static char TIMESTAMP_START[] = "TIMESTAMP_START";
+constexpr static char TO_USERNAME[] = "TO_USERNAME";
 constexpr static char ACCOUNTID[] = "ACCOUNTID";
 constexpr static char PEER_HOLDING[] = "PEER_HOLDING";
 constexpr static char AUDIO_MUTED[] = "AUDIO_MUTED";