1.0.0-pre.0

This is a fairly heavy rewrite of iterable-query to support both Query-style and functional-style operations.

In addition this release includes:

• Functional-style operations via "iterable-query/fn"
• Improved type information
• Support for AsyncIterable via AsyncQuery
• Down-level targets for "es2015" and "es5" (supports "es2017" by default). See https://rbuckton.github.io/iterable-query#supported-ecmascript-editions for more information.
• Improved documentation (via https://rbuckton.github.io/iterable-query), generated via TypeDoc.

This is a pre-release build and I'm looking for feedback on stability, utility, and performance.