refactor: flatten pages structure and update setup.php for Git Sync

- Move pages/{fqdn}/pages/* to pages/{fqdn}/*
- Update setup.php to look at /user/pages/{hostname}
- Prepare for Git Sync to sync pages/ to user/pages/

pages/charters.turnsys.com/195.JointVenture.TSYSGroup/default.md

@@ -0,0 +1,10 @@
+---
+title: 'TSYS Group'
+menu: 'TSYS Group'
+---
+
+# TSYS Group
+
+While the TSYS Group as a whole is not in scope of this proposal, it is the overall "container" that all the pieces make up.
+
+- Please see the [TSYS Group Plan](https://plan.turnsys.com)