Add Pipes (pipelines for collections) (fffaraz#1592)

Author: toge

README.md

@@ -1209,6 +1209,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
 * [mio](https://github.com/mandreyel/mio) - Cross-platform C++11 header-only library for memory mapped file IO. [MIT]
 * [MPH](https://github.com/qlibs/mph) - C++20 [Minimal] Static Perfect Hash library. [MIT]
 * [PEGTL](https://github.com/taocpp/PEGTL) - The Parsing Expression Grammar Template Library. [MIT]
+* [Pipes](https://github.com/joboccara/pipes) - Pipelines for expressive code on collections in C++. [MIT]
 * [pprint](https://github.com/p-ranav/pprint) - Pretty Printer for Modern C++. [MIT]
 * [pspsdk](https://github.com/pspdev/pspsdk) - An open-source SDK for PSP homebrew development. [BSD/GNU GPL3]
 * [QtVerbalExpressions](https://github.com/VerbalExpressions/QtVerbalExpressions) - This Qt lib is based off of the C++ VerbalExpressions library. [MIT]