tool_getparam: refactored, simplified

- add dedicated option functions for bools/none/strings
- simplify clearing (some) arguments, use '*' instead of ' '
- scripts/top-complexity: remove getparameter from whitelist
- handle --help separately
- getstr and getstrn do not allow a NULL input
- improve the ;auto check, it needs to be trailing
- add toggle bit helper function
- unify an error message for bad --no- use
- introduce generic handling of deprecated options: ARG_DEPR
- handle --no- prefix on more booleans:

    --cert-status
    --doh-cert-status
    --false-start
    --mptcp
    --ssl-no-revoke
    --ssl-revoke-best-effort
    --tcp-fastopen

Closes #17448

src/tool_parsecfg.c

@@ -172,8 +172,7 @@ int parseconfig(const char *filename, struct GlobalConfig *global)
 #ifdef DEBUG_CONFIG
       fprintf(tool_stderr, "PARAM: \"%s\"\n",(param ? param : "(null)"));
 #endif
-      res = getparameter(option, param, NULL, NULL,
-                         &usedarg, global, operation);
+      res = getparameter(option, param, &usedarg, global, operation);
       operation = global->last;
 
       if(!res && param && *param && !usedarg)