Catch up typings of dollar apollo

[joe-re]

update type definitions

fix: #409

Changes

• add clients and defaultClient property to ApolloProvider
  • enable to use this.$apollo.provider.defaultClient by this
• remove client property from DollerApollo
• enable to specify client name to query
  • enable to specify client name when request query

// use `test` client to request
this.$apollo.query({ query: gql`query mockQuery { id }`, client: 'test' })

[matrunchyk]

Thank you for the package! Can this PR be merged?

[praveenpuglia]

Hi @thewunder , @Akryum - Any idea on when this will get merged? Eagerly waiting :)

BTW, we at work heavily rely on this and this has helped us continue with Vue in general so a Giant thanks 🙇