Add ignoreUser mutation and myIgnoredUsers root query

graph/typeDefs.graphql

@@ -537,6 +537,9 @@ type RootQuery {
   # role.
   me: User
 
+  # Users that the currently logged in user ignores
+  myIgnoredUsers: [User]
+
   # Users returned based on a query.
   users(query: UsersQuery): [User]
 
@@ -703,6 +706,13 @@ type RemoveCommentTagResponse implements Response {
   errors: [UserError]
 }
 
+# Response to ignoreUser mutation
+type IgnoreUserResponse implements Response {
+  # An array of errors relating to the mutation that occured.
+  errors: [UserError]
+}
+
+
 # All mutations for the application are defined on this object.
 type RootMutation {
 
@@ -735,6 +745,9 @@ type RootMutation {
 
   # Remove tag from comment.
   removeCommentTag(id: ID!, tag: String!): RemoveCommentTagResponse
+
+  # Ignore comments by another user
+  ignoreUser(id: ID!): IgnoreUserResponse
 }
 
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