ae.sys.windows: Add largeInteger and ulargeInteger helpers
ae.sys.file: Replace FileEx with openFile
ae.sys.file: Reimplement safeWrite/move using safeUpdate
64-bit fixes
ae.utils.text: Remove hexDigits, std.ascii already has this
ae.sys.memory: Add onStack
ae.sys.timing: Add throttle
ae.utils.array: aaGet returns ref
ae.utils.array: Add getOrAdd
ae.utils.text: Constness fixes
ae.sys.persistence: Major overhaul