[ONERT] 2022 Milestone in GANNT format

[chunseoklee]

I have depicted several(important) milestones in gannt format.

gantt
    title 2022 Milestones
    dateFormat  YYYY-MM-DD
todayMarker off
    section [NPU Backend]
    single tvn           :milestone, 2022-04-15, 1d
    circle+tvn / MobileViT          :milestone, 2022-06-30, 1d
    RNN(circle+tvn) / Reference Model          :milestone, 2022-10-30, 1d
    section [On Device Compilation]
    Q-Circle Compilation      :milestone, 2022-06-30, 1d
    F32 circle Compilation        :milestone, 2022-10-30, 1d
    section [Multicore Execution]
    batch on multicore     :milestone, 2022-08-30  , 1d
    NPU Daemon Integration :milestone, 2022-10-30, 1d

@Samsung/one_onert Please update/add detailed items into chart as wish or write your opinion on comment.