[xwalk-2832] create a case to test Calling tizen.bluetooth.getDefaultAda...

[xwalk-2832] create a case to test Calling tizen.bluetooth.getDefaultAdapter() from two different web apps
 8 files changed, 273 insertions(+), 54 deletions(-)
i don't know who to change it,i merge to upstream/master, this page appear change info