xulrunner: Add recipe for v3.6.27

:Release Notes:
Add a recipe for xulrunner. It is used to make NPAPI plugins.

:Detailed Notes:

:Testing Performed:
See [GF-10571].

:QA Notes:

:Issues Addressed:
[GF-7675]  alljoyn: Split off build of xulrunner into a separate recipe
[GF-10571] CCC: alljoyn=r2 add xulrunner=v3.6.27

Open-webOS-DCO-1.0-Signed-off-by: seongho.kim <seongho.kim@lge.com>
Change-Id: Ia165e7fdb73a3283db0b00adcaf63d897a2b1cb7
Reviewed-on: https://g2g.palm.com/2902
Reviewed-by: Herb Kuta <herb.kuta@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>