Release v1.0.0

Changes in this release:

1.0.0 (2021-06-22)

Bug Fixes

• ci: Fix syntax error in github actions workflow (0b6e8bc)

Code Refactoring

• core: Update prometheus toolchain and refactor internals (056b386)

Features

• enhancement: Allow excluding datasets by regular expression (8dd48ba), closes #3

BREAKING CHANGES

• core: Go API has changed somewhat, but metrics remain
  unaffected.