Add -fkeep-inline-functions COMPILE_FLAGS to SQLiteCpp
Add -fkeep-inline-functions COMPILE_FLAGS to SQLiteCpp

Prevent the compiler from removing the unused inline functions so that they get tracked as "non-covered"

This will reduce the current coverage from (incorrect) 100% to realistic 9%"

mc-server/SQLiteCpp,mc-server/SQLiteCpp,SRombauts/SQLiteCpp,mc-server/SQLiteCpp,SRombauts/SQLiteCpp,SRombauts/SQLiteCpp