Update graphql-tools in /modules/api from 2.23.1 to 4.0.0

[dependencies]

Dependencies.io has updated graphql-tools (a npm dependency in /modules/api) from "2.23.1" to "4.0.0".

4.0.0

Potentially Breaking

• Support graphql and @types/graphql 14.x.
  NOTE: graphql 14 includes breaking changes. We're bumping the major version of graphql-tools to accommodate those breaking changes. If you're planning on using graphql 14 with graphql-tools 4.0.0, please make sure you've reviewed the graphql breaking changes list.
  hwillson in #953

Updates / Bug Fixes

• Fix template strings usage in guessSchemaByRootField error message.
  nagelflorian in #936
• Update IFieldResolver to allow typed input args.
  luk3thomas in #932
• Changes to extractExtensionDefinitions to properly support graphql-js input extensions.
  jure in #948
• Stop automatically shallow cloning (via object spread syntax) transformed subscription results. Transformed subscription results are not always objects, which means object spreading can lead to invalid results.
  ericlewis in #928
• Re-use errors with an extensions property to make compatible with Apollo Server and it's built-in errors.
  edorsey in #925
• Documentation updates.
  Amorites in #944
  trevor-scheer in #946
  dnalborczyk in #934
  zcei in #933

3.1.1

• Revert the added casual dependency for mocking, since it was causing issues for people using graphql-tools in the browser.

3.1.0

• Loosens the apollo-link dependency PR #765
• Use getDescription from graphql-js package PR #672
• Update IResolvers to use source & context generics and to support all resolver use cases. #896
• WrapQuery's wrapper param can now return a SelectionSet. PR #902 Issue #901
• Add null to return type of directive visitors in the TypeScript definition.
• Make sure mergeSchemas keeps Enum descriptions and deprecation status. PR 898
• Add inheritResolversFromInterfaces option to mergeSchemas PR #812
• Added filtering of empty selection sets in FilterToSchema #827
• Add support for overlapping fragments in ReplaceFieldWithFragment. #894
• delegateToSchema now behaves like info.mergeInfo.delegateToSchema for fragment handling Issue #876 PR #885
• Make schema transforms work with subscriptions, make it so that subscription errors don't disappear when using mergeSchemas #793 #780