[misc] Fix postsubmit status in README.md by replacing it with publis…

…hing checks (taichi-dev#3840)

* [misc] Fix postsubmit status in Readme.md

* update naming

[refactor] Merge taichi.misc into taichi.tools.

`taichi_logo` uses high level `ti.func` decorator so importing it can
easily cause circular import. This PR moves it out of `tools/__init__.py`.

ghstack-source-id: 8f85301fa50a716b6e46f8ccb0d2cfee5368e3c9
Pull Request resolved: taichi-dev#3727

[Lang] Check version when importing taichi instead of when using ti (t…

…aichi-dev#3598)



* [Lang] Check version when importing taichi instead of when using ti


* use urllib instead of requests to avoid importing external lib

[misc] Fix python wheel versioning. (taichi-dev#3450)

[misc] Version bump: v0.8.3->v0.8.4 (taichi-dev#3295)

[refactor] Rename nparray to external_array in Python-side (taichi-de…

…v#3191)

* [refactor] Rename nparray to external_array in Python-side

* Auto Format

Co-authored-by: Taichi Gardener <[email protected]>

[bug] Fix the mapping from virtual axes to physical axes (taichi-dev#…

…3159)

* [bug] Fix the mapping from virtual axes to physical axes

* Auto Format

Co-authored-by: Taichi Gardener <[email protected]>

[vulkan] Disable Vulkan validation layer (taichi-dev#3050)

* [refactor] Respect NDEBUG

* fix?

* hacky fix

[release] v0.8.0 (taichi-dev#2974)

[release] v0.7.32 (taichi-dev#2901)