feat/export calculate token

[MadCcc]

• feat: export calculateToken
• feat: getComputedToken

[github-actions[bot]]

😭 Deploy PR Preview 0151082b220dc752e5a045909406daeee3c2723a failed. Build logs

_{🤖 By surge-preview}

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.04 :tada:

Comparison is base (43f3064) 96.07% compared to head (207bb9d) 96.11%.

:exclamation: Current head 207bb9d differs from pull request most recent head 0151082. Consider uploading reports for the commit 0151082 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #115 +/- ## ========================================== + Coverage 96.07% 96.11% +0.04% ========================================== Files 22 22 Lines 1706 1726 +20 Branches 286 287 +1 ========================================== + Hits 1639 1659 +20 Misses 67 67 ``` | [Impacted Files](https://app.codecov.io/gh/ant-design/cssinjs/pull/115?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ant-design) | Coverage Δ | | |---|---|---| | [src/hooks/useCacheToken.tsx](https://app.codecov.io/gh/ant-design/cssinjs/pull/115?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ant-design#diff-c3JjL2hvb2tzL3VzZUNhY2hlVG9rZW4udHN4) | `99.38% <100.00%> (+0.08%)` | :arrow_up: | | [src/index.ts](https://app.codecov.io/gh/ant-design/cssinjs/pull/115?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=ant-design#diff-c3JjL2luZGV4LnRz) | `100.00% <100.00%> (ø)` | |

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