Add fast_float to Miscellaneous (fffaraz#1604)

Author: AndrewChan2022

README.md

@@ -1190,6 +1190,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
 * [DynaMix](https://github.com/iboB/dynamix) - A library which allows you to compose and modify objects at run time. [MIT]
 * [emio](https://github.com/Viatorus/emio) - A safe and fast high-level and low-level character input/output library. [MIT]
 * [faker-cxx](https://github.com/cieslarmichal/faker-cxx) - C++20 Faker library for generating fake (but realistic) data for testing and development. [MIT]
+* [fast_float](https://github.com/fastfloat/fast_float) - Fast, Exact C++ from_chars, 4x to 10x faster than strtod, part of GCC 12, Chromium, Redis, Webkit/Safari. [Apache2/BSL-1.0/MIT]
 * [FastFormat](http://www.fastformat.org) - Fast, Safe C++ Formatting inspired by log4j and Pantheios. [Simplified BSD]
 * [fast_io](https://github.com/cppfastio/fast_io) - Significantly faster input/output for C++20. [MIT]
 * [fccf](https://github.com/p-ranav/fccf) - A command-line tool that recursively searches a directory to find C/C++ source code matching a search string. [MIT]