Solana Talent Olympics - Memecoin prediction

This is a Solana program that implements a prediction market for meme coin prices. Users can create proposals predicting whether the price of a specific meme coin will be higher or lower within a specified timeframe.
Other users can make predictions on the proposal, and at the end of the timeframe, the proposal creator can settle the proposal, determining the final price.
The proposal creator will send the rewards to the users who predictions are correct, otherwise it will resolve and keep the money.