Improve task exception handling

Handle exceptions in AsyncResult's, and AsyncOption's ofTask, and ofUnitTask using the custom awaitTaskWithInnerException function found in the Async module.

Improved CEs

Added CE extensions for AsyncResult, and AsyncOption to be able to bind tasks inside their respective CE block.

Remove bindError

Remove bindError from Result, and AsyncResult.

Add mapError

This version adds mapError to AsyncResult.

First complete version!

Includes:

• Extension to Result, Option, and Async modules
• Two type aliases: AsyncResult, and AsyncOption, with a set of functions and CE builders.