Adding SEUtils.jsm for Secure Element and ACE, r=allstars.chh

Change-Id: Ia8bdd8e36772b6651cecfc2fd6af48b1636ed924
SEUtils integration

Change-Id: I9e84996a35e5883d40839bb20d17f0a2625eec2f
Merge pull request #20 from tauzen/se_utils_p1

Added and integrated SEUtils.jsm.