Added doomsday clock interface

- Added interface doomsday clock settings
- Added seperate clock.json to track clock position
- Cleaned up overlay JS
- Began cleaning up interface PHP

diff --git a/clock.json b/clock.json
new file mode 100755 (executable)
index 0000000..c36e628
--- /dev/null
+++ b/clock.json
@@ -0,0 +1 @@
+{"currentPosition":270,"movementSpeed":10,"function":"ease"}
\ No newline at end of file