allow common.cmake to contain lists of dirs to search for project includes and project srcs
allow common.cmake to contain lists of dirs to search for project includes and project srcs

jdkoftinoff/jdksavdecc-mcu,jdkoftinoff/jdksavdecc-mcu,jdkoftinoff/jdksavdecc-mcu,jdkoftinoff/jdksavdecc-mcu