extism-pdk 1.0.0 on Rust Cargo

What's Changed

feat!: simplify memory interface, use extism-convert for working with extism memory by @zshipko in #31
ci: use new extism cli by @zshipko in #32
docs: Create a README and getting started guide by @bhelx in #34
feat: add discord link to end, minor tweaks to verbiage by @wikiwong in #35
chore: use extism:host/env namespace by @zshipko in #36
fix(derive): remove support for native types when using the macros by @zshipko in #38
docs: Recommend new users try 1.0 beta by @bhelx in #37
Release 1.0.0 rc1 by @bhelx in #39
fix(io): attempt to optimize loading/storing i/o by @chrisdickinson in #33
cleanup: add Memory::free by @zshipko in #40
chore: add bindings to length_unsafe by @zshipko in #41
release: 1.0.0 by @bhelx in #42

Full Changelog: v0.3.4...v1.0.0