skip automatic indentation inside comments (bytecodealliance#804)

This fixes broken indentation due to
e.g. `wasi:io/streams#output-stream.blocking-write-and-flush`, which has a
doc comment that contains curly brackets.

This isn't generally a problem for Rust, which uses `rustfmt` if available, but
leads to headaches for C if `clang-format` isn't handy.

Signed-off-by: Joel Dice <joel.dice@fermyon.com>

Initial 0.1.0 release

This is an initial tag of the wit-bindgen repository indicating that
it's tentatively ready for initial use. It's expected that the APIs and
how developers interact with wit-bindgen will significantly change on
the path to 1.0 but at the same time the current state of wit-bindgen is
stable enough that it should be suitable for many contexts.