feat: Add provide/inject method

[DevRickLin]

Summary

Using app.provide to provide the instance of Sdk with key CASDOOR_INJECTION_KEY, then encapsulate inject(CASDOOR_INJECTION_KEY) into useCasdoor.

Usage

const { signin } = useCasdoor();

Relating issue

Fix: https://github.com/casdoor/casdoor-vue-sdk/issues/9

[casbin-bot]

@seriouszyx @ComradeProgrammer @Resulte please review

[CLAassistant]

All committers have signed the CLA.

[hsluoyz]

@Nekotoxin plz review

[hsluoyz]

@leo220yuyaodog @imp2002 plz review

[imp2002]

@DevRickLin Could you help add a use example in README?

Such as a example use useCasdoor() in setup(), use Vue3 Composition API that inconvenient to use this to access vue instance.

setup() {
  ...
  const casdoor = useCasdoor()
  // use the casdoor
  ...
}

[DevRickLin]

@DevRickLin Could you help add a use example in README?

Such as a example use useCasdoor() in setup(), use Vue3 Composition API that inconvenient to use this to access vue instance.

setup() {

  ...

  const casdoor = useCasdoor()

  // use the casdoor

  ...

}

I am working on it.

[DevRickLin]

@DevRickLin Could you help add a use example in README?

Such as a example use useCasdoor() in setup(), use Vue3 Composition API that inconvenient to use this to access vue instance.

setup() {
  ...
  const casdoor = useCasdoor()
  // use the casdoor
  ...
}

@imp2002 I have added the example and some explanations to README.

[hsluoyz]

@imp2002

[imp2002]

LGTM

[github-actions[bot]]

:tada: This PR is included in version 1.1.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: