explicitly specify available imported symbols

Fix LSP warnings like ""entity_instance" is not exported from module "ifcopenshell"PylancereportPrivateImportUsage" for `ifcopenshell.file`, `ifcopenshell.entity_instance` etc.

After adding py.typed in 722201a1a it's now a typed library and all imported symbols in modules are considered private by default and should be added to `__all__` if they are supposed to be generally available from imported module.

See https://github.com/microsoft/pyright/blob/main/docs/typed-libraries.md#library-interface

src/ifcopenshell-python/ifcopenshell/__init__.py

@@ -86,6 +86,18 @@ from .file import file
 from .entity_instance import entity_instance, register_schema_attributes
 from .sql import sqlite, sqlite_entity
 
+# explicitly specify available imported symbols
+# (it's a requirement for a typed library)
+__all__ = [
+    "ifcopenshell_wrapper",
+    "file",
+    "entity_instance",
+    "sqlite",
+    "sqlite_entity",
+    "stream",
+    "stream_entity",
+]
+
 try:
     from .stream import stream, stream_entity
 except: