[tdesign] Support automatic import of instructions

[atox996]

Clear and concise description of the problem

I hope can support automatic export of custom instructions from the library

Suggested solution

just like element-plus

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guide.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[ilyaliao]

Why not consider using unplugin-vue-components directly? They work well together.