Initial creation of cpp version. Updated README.

CPP_Implementation/RBF_aPID.cpp

@@ -0,0 +1,8 @@
+#include <iostream>
+#include <cmath>
+
+int main() {
+    std::cout << "Test" << std::endl;
+    
+    return 0;
+}

README.md

@@ -19,4 +19,7 @@ The method has been implemented in three ways:
 
 ![Numpy](images/nump_impl.png "Numpy")
 
-3. C++ `CPP_Implementation`: Written in C++ (requiring `cmath`), for use on embedded systems.
+3. [CPP_Implementation](/CPP_Implementation/): Written in C++ (requiring `cmath`), for use on embedded systems.
+
+To build executable: `g++ RBF_aPID.cpp -o RBF_aPID.exe`\
+To run: `./RBF_aPID.exe`