Added software projects libsgfc++ and SgfcKit

With a delay of two months after their first official release I have now added my newest projects, libsgfc++ and SgfcKit, to the list of software projects.

libsgfc++ (GitHub project page) is a cross-platform C++ wrapper library around SGFC, the SGF Syntax Checker & Converter. SGFC is a command line utility written in C that reads and writes SGF (Smart Game Format) files. By wrapping SGFC’s functionality, libsgfc++ transforms the command line utility into a reusable software library that makes the functionality available in the form of an object-oriented API.

SgfcKit (GitHub project page) is an Objective-C wrapper library around libsgfc++, making the combined libsgfc++ / SGFC functionality available to Objective-C clients.