Refactor BulkImport graphql queriable methods

Removes some code duplication.
I've created the BulkImports::Projects::Graphql::Queriable module
to support some boilerplate method definition on some of the
BulkImports::Projects::Graphql/* files

lib/bulk_imports/projects/graphql/get_project_query.rb

@@ -4,6 +4,7 @@ module BulkImports
   module Projects
     module Graphql
       module GetProjectQuery
+        extend Queryable
         extend self
 
         def to_s
@@ -28,22 +29,6 @@ module BulkImports
           }
           GRAPHQL
         end
-
-        def variables(context)
-          { full_path: context.entity.source_full_path }
-        end
-
-        def base_path
-          %w[data project]
-        end
-
-        def data_path
-          base_path
-        end
-
-        def page_info_path
-          base_path << 'page_info'
-        end
       end
     end
   end

lib/bulk_imports/projects/graphql/get_repository_query.rb

@@ -4,6 +4,7 @@ module BulkImports
   module Projects
     module Graphql
       module GetRepositoryQuery
+        extend Queryable
         extend self
 
         def to_s
@@ -15,22 +16,6 @@ module BulkImports
           }
           GRAPHQL
         end
-
-        def variables(context)
-          { full_path: context.entity.source_full_path }
-        end
-
-        def base_path
-          %w[data project]
-        end
-
-        def data_path
-          base_path
-        end
-
-        def page_info_path
-          base_path << 'page_info'
-        end
       end
     end
   end

lib/bulk_imports/projects/graphql/queryable.rb

+# frozen_string_literal: true
+
+module BulkImports
+  module Projects
+    module Graphql
+      module Queryable
+        def variables(context)
+          { full_path: context.entity.source_full_path }
+        end
+
+        def base_path
+          %w[data project]
+        end
+
+        def data_path
+          base_path
+        end
+
+        def page_info_path
+          base_path << 'page_info'
+        end
+      end
+    end
+  end
+end