provide more includes to Cppcheck

- added (temporary) suppression of Cppcheck `shiftTooManyBits` false positives in `libxrdp/xrdp_mppc_enc.c`
- added (temporary) suppression of Cppcheck `uninitMemberVar` true positives in `ulalaca/ulalaca.cpp` until fixes land downstream
- fix Cppcheck `nullPointerRedundantCheck` in `sesman/chansrv/clipboard.c`
- fix Cppcheck `syntaxError` in `fontutils/mkfv1.c` because it doesn't see the `freetype/fterrors.h` header / removed astyle workaround

fontutils/mkfv1.c

@@ -37,11 +37,9 @@ static const struct
     const char  *err_msg;
 } ft_errors[] =
 #include <freetype/fterrors.h>
-
-#if 0
-    /* These lines fix problems with astyle formatting following the ft_errors
-     * definition */
-}
+#ifdef __cppcheck__
+    // avoid syntaxError by providing the array contents
+    {};
 #endif