v0.0.3

A quick performance boost update!

• Reworked internal list implementation to use immutable arrays (since lists are copied and passed by value anyways).
• Files imported by the use function are now cached.
• The event function now takes an optional time argument, representing the maximum blocking time of the function.
• The behavior of event without the passed time argument has been changed from maximally blocking 0.1 seconds, to blocking indefinitely until an event is received.