chore: Add .gitignore and update module version to 19.0.

.gitignore

@@ -0,0 +1,15 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Editor
+.vscode/
+.idea/
+
+# Odoo
+*.pot

__manifest__.py

@@ -1,6 +1,6 @@
 {
     'name': 'Sale Order Tracking',
-    'version': '18.0.1.0.0',
+    'version': '19.0.1.0.0',
     'category': 'Sales',
     'summary': 'Track changes in Sale Orders and Lines',
     'description': """