setup skeleton GearmanPlugin.

Change-Id: I9a69f8c4d396f5b0fdab192ec7c8d1d140950060
add work folder to git ignore

Change-Id: I1ffab7888ed5e07b24fcd48e1535fa26e141edaf
update text info to GearmanPlugin

Change-Id: I920ff29eed4770f194a3420ace0755fb64f98641