Move new project tool to core tools (resolves #1152)

novelwriter/core/__init__.py

@@ -19,7 +19,7 @@ You should have received a copy of the GNU General Public License
 along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 
-from novelwriter.core.coretools import DocMerger, DocSplitter
+from novelwriter.core.coretools import DocMerger, DocSplitter, ProjectBuilder
 from novelwriter.core.document import NWDoc
 from novelwriter.core.index import countWords
 from novelwriter.core.project import NWProject
@@ -31,6 +31,7 @@ from novelwriter.core.tomd import ToMarkdown
 __all__ = [
     "DocMerger",
     "DocSplitter",
+    "ProjectBuilder",
     "countWords",
     "NWDoc",
     "NWProject",