v1.0.0

• Add flake.nix
• Add :plug to :input_deps in formatter config
• Update deps requirements:
  • plug: ~> 1.4 -> ~> 1.6
  • jason: ~> 1.1 -> ~> 1.4
  • excoveralls: ~> 0.12 -> ~> 2.1
  • plug_cowboy: ~> 2.1 -> ~> 2.7
  • ex_json_schema: ~> 0.7 -> 0.10
• Add :decimal to deps
• Deprecate Code.ensure_compiled?/1 in favor of Code.ensure_compiled/1 as recommended by deprecation warning
• Provide more information about why :json_encoder is invalid
• Check if inside mix project before trying to start server, warn if not
• Allow user to configure the test server port by setting the TEST_SERVER_PORT environment variable