[FEATURE] sap.m.MessageToast:Enable text selection

-Message Toast will not fade out on hover or when
 tapped.
-Auto close interval will renew when the mouse leaves
 the toast for desktop. For touch one should tap
 outside of the toast to close it directly.

Change-Id: Icf93121e273891ba0b7f504c82213f9f42c829ec
Signed-off-by: Deyan Yanakiev <deyan.yanakiev@sap.com>
Merge "[FEATURE] sap.m.MessageToast:Enable text selection"