Replace -Wswitch-enum with -Wswitch, and add it into cmake rules too
According to https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html:
-Wswitch-enum
Warn whenever a switch statement has an index of enumerated type and lacks a
case for one or more of the named codes of that enumeration. case labels
outside the enumeration range also provoke warnings when this option is used.
The only difference between -Wswitch and this option is that this option
gives a warning about an omitted enumeration code even if there is a *default
label*.