Move all OCA HR modules from oca-technical to dedicated oca-hr submodule

Reorganized 67 HR-related modules for better structure:
- Moved all odoo-bringout-oca-hr-* packages from packages/oca-technical/
- Now organized in dedicated packages/oca-hr/ submodule
- Includes attendance, expense, holiday, employee, and contract modules
- Maintains all module functionality while improving project organization

This creates a cleaner separation between general technical modules
and HR-specific functionality.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

odoo-bringout-oca-hr-hr_contract_reference/hr_contract_reference/tests/__init__.py

@@ -0,0 +1 @@
+from . import test_contract_reference

odoo-bringout-oca-hr-hr_contract_reference/hr_contract_reference/tests/test_contract_reference.py

@@ -0,0 +1,16 @@
+# Copyright 2020 Creu Blanca
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo.tests.common import TransactionCase
+
+
+class TestContractReference(TransactionCase):
+    def setUp(self):
+        super(TestContractReference, self).setUp()
+        self.employee = self.env["hr.employee"].create({"name": "Emp"})
+
+    def test_contract_reference(self):
+        contract = self.env["hr.contract"].create(
+            {"employee_id": self.employee.id, "wage": 1000}
+        )
+        self.assertNotEqual(contract.name, "/")