Loads a 1-minute OHLCV CSV, rolls it up to 5m / 15m / 1h / 4h / 1d
buckets in JS, and prints RSI(14), MACD(12,26,9) histogram and
ADX(14) per timeframe via the WebAssembly bindings. The browser
counterpart of examples/python/multi_timeframe.py,
examples/node/multi_timeframe.js and
examples/rust/src/bin/multi_timeframe.rs.