bd69768e0d
Do more encapsulation of raw pointers, use more PrimaryMaps instead of Vecs, add a table.rs for managing table storage.
This is the wasmtime-environ crate, which contains the implementations
of the ModuleEnvironment and FuncEnvironment traits from
cranelift-wasm. They effectively
implement an ABI for basic wasm compilation, which can be used for JITing,
native object files, or other purposes.