Version 0.12.0

New features:
* Added new `computer` module syscall `free_ram` from OC-Wasm version
  1.12-1.0.0.

Changes:
* OC-Wasm-related crates will be versioned in lockstep, starting from
  0.12.0. This means that equal version numbers should now be compatible
  with each other.

Maintenance:
* Bumped `ordered-float` dependency to version 4.

Version 0.2.1

New features:
* Added new `computer` module syscall `debug` from OC-Wasm version
  1.12.2-0.4.0.

Version 0.2.0

New features:
* Added new `component` module syscalls `last_exception_message` and
  `last_exception_is_type` from OC-Wasm version 1.12.2-0.3.0.

Fixes:
* Set build target for docs.rs.

Maintenance:
* Bumped `ordered-float` dependency to version 3.

Version 0.1.0