feat: added xstow.ini and updated ignores to have xstow.ini

.stowrc

@@ -1,6 +1,6 @@
---ignore='^\.github$'
---ignore='^policy\.hujson$'
+--ignore='^httpd$'
 --ignore='^slurm$'
 --ignore='^tsdproxy$'
 --ignore='^vimix$'
---ignore='^httpd$'
+--ignore='^policy\.hujson$'
+--ignore='^xstow\.ini$'

xstow.ini

@@ -0,0 +1,8 @@
+[matches]
+ignore = ^httpd$
+ignore = ^slurm$
+ignore = ^tsdproxy$
+ignore = ^vimix$
+ignore = ^\.stowrc$
+ignore = ^policy\.hujson$
+ignore = ^xstow\.ini$