0.5.0

[lxsmnsyc]

This release adds the new optimization process. The 0.4.0 algorithm was a bit naive and will over memoize for expressions that barely need them. The new algorithm ensures a better memoization process by doing the following stages:

1. Pre-inlining
   Variable declarations that can be inlined are recursively inlined. This allows the memoization step to know the largest possible constant expression and cache it in a single entry.
2. Expansion
   Assignment expressions and hooks had issues in optimization in 0.4.x. With the expansion step, these expressions are now moved before the parent statement path, and ensures that these expressions are called out of their rules.
3. Simplify
   Some expressions that are guaranteed to have literal evaluation are evaluated in compile-time.
4. Memoize
   This is where the old core runs.
5. Post-inlining
   Same process as step 1. This allows generated variables to be inlined so that there's less output.

Other changes:

• Largest constant expressions are now cached as a single expression rather than subdividing naively.
• Fix initial render detection for caching
• Add $$branch
• Fixes Rendered fewer hooks than expected. This may be caused by an accidental early return statement. #14
• await and yield are no longer optimized.