Use AudioWorklet (+ WebAssembly) instead of AnalyserNode on Analyser class

[Korilakkuma]

Because AnalyserNode cannot get data for each channel. Therefore, using AudioWorklet instead of AnalyserNode, Analyser class enable to get dat for each channel. Moreover, Analyser class can get not only amplitude spectrum but also phase spectrum.

For example,

X('audio').module('analyser').domain('time', 0);
X('audio').module('analyser').domain('time', 1);
X('audio').module('analyser').domain('fft', 0);
X('audio').module('analyser').domain('fft', 1);
X('audio').module('analyser').domain('phase', 0);
X('audio').module('analyser').domain('phase', 1);