[MNT] handle multi import files in zip

[MNT] fix search by name and desciption

[ENH]  1. add load learnware in client. 2. add doc for client

[MNT] check model input with rkme dimension

[MNT] change name of some methods

[ENH] Provide with faster _update_z_vectorize.

[ENH] add learnware client

[MNT] update quick.rst and submit.rst

[MNT] import class when initiate learnware

[ENH] subit doc polish

[MNT] remove check keys in semantic spec search

[MNT] add sqlalchemy in setup.py

[ENH] review and enhancement of submit instructions

[MNT] add learnware update function

[MNT] Modify project version

[MNT] Enhance the robustness of generating rkme spec

[MNT] modify doc for learnware environment

[MNT] rewrite database ops to support postgres

[DOC] Modify details about docs

add requirements.txt for speeding up docker build

[DOC] Modify the logo