cleans up project and adds axi4_pin_level test

CMakeLists.txt

@@ -15,7 +15,7 @@ include(BuildType)
 
 #enable_testing() 
 
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
@@ -61,7 +61,7 @@ endif()
 endif()
 
 conan_check()
-conan_configure(REQUIRES fmt/6.1.2 boost/1.75.0 gsl-lite/0.37.0 systemc/2.3.3 systemc-cci/1.0.0 
+conan_configure(REQUIRES fmt/6.1.2 boost/1.75.0 gsl-lite/0.37.0 systemc/2.3.3 systemc-cci/1.0.0 catch2/3.1.0
                 GENERATORS cmake_find_package
                 OPTIONS fmt:header_only=True 
                 )
@@ -72,10 +72,12 @@ find_package(ZLIB)
 set(Boost_NO_BOOST_CMAKE ON) #  Don't do a find_package in config mode before searching for a regular boost install.
 find_package(Boost COMPONENTS program_options filesystem system thread REQUIRED)
 find_package(fmt)
+find_package(Catch2)
+
 include(SystemCPackage)
 
 enable_testing()
 
 add_subdirectory(scc)
-add_subdirectory(examples)
+add_subdirectory(src)
 add_subdirectory(tests)