Merge pull request alibaba#2177 from alibaba/feature/sync

[MNN:Internal] Sync to 2.2.3

Merge pull request alibaba#2131 from alibaba/feature/sync_2_2_2

[Sync] Sync Internal 2.2.2

[Sync] Sync Internal Gitlab 2.2.1

Merge pull request alibaba#2103 from alibaba/feature/sync_2_2_0

[Sync] Sync Internal Gitlab 2.2.0

Merge pull request alibaba#2086 from alibaba/feature/syncInternal

[Sync] Sync Internal 2.1.2

[MNN:Sync] Sync Internal 2.1.1 contain below changes.

    [Pymnn:Bugfix] Fix usage and small bug in pymnn.
    [Docs:Update] Update docs/cpp markdown
    [Docs:Update] Add docs check.
    [MNN:Update] Update VecHalf.hpp
    [MNN:Bugfix] Fix compile errors caused by "#define MNN_THREAD_LOCK_CPU"
    [Geometry:Bugfix] Fix bug for resize of broadcastto: alibaba#2040
    [Docs:Update] Update inference api usage.
    [Pymnn:Bugfix] Close hiai load to fix resource leak.
    [MNN:Update] Down gradle version for demo compile

Merge pull request alibaba#2037 from alibaba/feature/sync

[MNN:Sync] Sync Internal 2.1.0

Merge pull request alibaba#2027 from wangzhaode/feature/mnn_sync

Sync Internal 2.0.5

Merge pull request alibaba#2017 from alibaba/feature/sync

Sync Internal 2.0.4

Merge pull request alibaba#2000 from alibaba/feature/sync

[Sync] Sync internal 2.0.3