Adding dockerfile for CI server enviornment
Adding dockerfile for CI server enviornment

Change-Id: I66e5304ed90af901786de630e728cd847c6ea152

jarekankowski/iosched,google/iosched,WeRockStar/iosched,epiphany27/iosched,epiphany27/iosched,epiphany27/iosched,jarekankowski/iosched,jarekankowski/iosched,google/iosched,WeRockStar/iosched,google/iosched,amardeshbd/iosched,WeRockStar/iosched,amardeshbd/iosched,amardeshbd/iosched,amardeshbd/iosched