CI: fix the push of Docker images, and add tests that all the solutions of the exercises compile

Close #130 (closed), #131 (closed)

HandsOn/1-ProceduralProgramming/Solution/CMakeLists.txt

+cmake_minimum_required(VERSION 3.9)
+
+include(../../Config/cmake/Settings.cmake)
+
+project(GettingStartedWithModernCpp_HandsOn_Procedural)
+
+include(../../Config/cmake/AfterProjectSettings.cmake)    
+
+
+
+add_executable(exercise1 exercise1.cpp)
+add_executable(exercise2 exercise2.cpp)
+add_executable(exercise3 exercise3.cpp)
+add_executable(exercise4 exercise4.cpp)
+add_executable(exercise5 exercise5.cpp)
+add_executable(exercise6 exercise6.cpp)
+add_executable(exercise7 exercise7.cpp)
+add_executable(exercise8 exercise8.cpp)
+add_executable(exercise9 exercise9.cpp)
+add_executable(exercise10 exercise10.cpp)
+add_executable(exercise11 exercise11.cpp)
+add_executable(exercise12 exercise12.cpp)
\ No newline at end of file