reshapes build system to allow standalone C++ build as well as for PA

README.md

@@ -45,7 +45,7 @@ This ISS is based in DBT-RISE, a library to allow rapid ISS creation.
 
   ``` 
 
-### Accellera SystemC build
+### Standalone (C++) build
 
 * start an out-of-source build:
   
@@ -71,7 +71,7 @@ Assuming environment for Platform Architect is properly set up.
   export CC=$COWAREHOME/SLS/linux/common/bin/gcc
   export CXX=$COWAREHOME/SLS/linux/common/bin/g++
   cmake -S . -B build/PA -DCMAKE_BUILD_TYPE=Debug -DUSE_CWR_SYSTEMC=ON \
-    -DBUILD_SHARED_LIBS=ON -DCODEGEN=OFF -DCMAKE_INSTALL_PREFIX=${TGFS_INSTALL_ROOT}
+    -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX=${TGFS_INSTALL_ROOT}
   cmake --build build/PA --target install -j16
 
 ```