- Added loop for pipimeter. Every PIPIMETER_LOOP minutes (when the stream is...

- Added loop for pipimeter. Every PIPIMETER_LOOP minutes (when the stream is live), when the pipimeter is not empty, the current count is sent into the chat (same as invoking !pipimeter as mod). In addition to that, the loop checks, whether the stream turned live after being offline for at least PIPI_RESET_THRESHOLD minutes. In that case, the pipi count is reset.
- Added giveaway_cog.py and pipi_cog.py to source Giveaway and Pipi related functionality out into those cogs.
- Changed the way, the pipimeter is colored. Instead of using absolute values, now the percentage controls the color change.