We need to embed resources in wasm builds. Unfortunately we can't detect
that we're called by say wasm-pack and "TARGET"/"HOST" only works inside
build.rs. So instead, to keep things simple, this change always embeds
the image resources when targeting Rust.
The `SIXTYFPS_EMBED_RESOURCES` environment variable can be used to
override this anywhere for any language.
Fixes#130
This will allow the online editor to load imports from URL asynchroniously later
Since currently the compiler is only working on a single thread, and that we
never await on a future that could block, it is allowed to use the spin_on executor
Currenly, dashes are normalized to '_'.
Dashes are not allowed at the begining of an identifier.
If an identifier with a dash is not found, we also look for identifier
without a dash and if that exist, we hint the user to use spaces.
Issue #52
