Running under a single call.
This required increasing variable size from u8 to u16.

There's also support for the disable operation.

With initial approach for scalling down the speed of other components.

Adds support for the Zelda Oracle.

Thsi avoids possible overflow issues.

Also added CH4 public WASM API

The all trigger was missing calls to channel 2 and 4.

This issue was prevent CH4 from working properly.
Also added TODO operations to the master volume.

The implemenation seems correct but is yet to be tested.
The coding of LFSR still needs auditing.

Also fixed small channel 3 issue

Improves performance of APU by an order of maginute at the cost of less accurate emulation.