v1.204.0

Merge with upstream (#81)

Notable changes:
* Feature flags are now tracked using a bit-vector.

v1.203.0

Merge with upstream (#80)

v1.202.0

Merge with upstream (#76)

Merges in the latest release.

wasmfx-tools-v1.201.0+rev.1

wasmfx-tools-1.201.0+rev.1

Merge with upstream (#67)

wasmfx-tools-1.0.60

Merge in latest upstream release (wasm-tools-1.0.60) (#59)

wasmfx-tools-1.0.58

Merge up to latest release wasm-tools-1.0.58 (#56)

wasmfx-tools-1.0.57

Merge with upstream (#54)

Synchronise with the new release of upstream wasm-tools.