[what] Modify for running OEM batch script
       Change script with newBatch.js
       Add getOEMs, runOEM, newBatch, oemCreateIndex, and newBatchByOEM scripts
       Modify when api.js start, api program will preload OEMs data
[what] Preload oem table for check
[what] Check agreement start/end
[what] Add get OEM and Raw OEM db name script
       Fix oem create index by oem deal number
       Modify rum OEM batch script
       Add oem report datebase
[what] add oem snapshot script
       add dashboard UI with oem
       prepare oem report script
[what] add dashboard frontend image
[what] add default(generic) app's deal number
Merge branch 'snow_cl' of https://github.com/qwweee/countly-server into snow_cl