Fix Event Emitter

Fixed

• Fixed event emitter with once events
• Always clone signal when cloning requests instead of sharing the same signal instance

Common Clone

Fixed

• Add clone() methods to common interfaces

Specify default `Common` bodies for generic parameter

Fixed

• Export url on CommonRequest interface

Added

• Add unknown as the default generic parameter for Common bodies

Headers As Object Type

Fixed

• Avoid undefined in asObject return type since it's copied from internal object

Export `{Request,Response}Options`

Added

• Export RequestOptions and ResponseOptions from type-safe entry points

Export universal class types alongside `const`

Added

• Export type mirrors of const for universal entry point

Stream To Text

Fixed

• Reuse function between buffer and text output

Undefined header keys for init

Added

• Support undefined keys for the object form of initializing headers

Fetch-like Rewrite

Changed

• Rewrite to mirror fetch with Request and Response, output a smaller build for browsers

`UrlWithStringQuery`

Changed

• Expose Url as UrlWithStringQuery for better query string parser understanding