nostrdb: port everything over to be in as sync as possible

for now

nostrdb/bindings/c/meta_verifier.h

@@ -6,8 +6,8 @@
 #ifndef META_READER_H
 #include "meta_reader.h"
 #endif
-#include "flatcc_verifier.h"
-#include "flatcc_prologue.h"
+#include "flatcc/flatcc_verifier.h"
+#include "flatcc/flatcc_prologue.h"
 
 static int NdbEventMeta_verify_table(flatcc_table_verifier_descriptor_t *td);
 
@@ -43,5 +43,5 @@ static inline int NdbEventMeta_verify_as_root_with_type_hash(const void *buf, si
     return flatcc_verify_table_as_typed_root(buf, bufsiz, thash, &NdbEventMeta_verify_table);
 }
 
-#include "flatcc_epilogue.h"
+#include "flatcc/flatcc_epilogue.h"
 #endif /* META_VERIFIER_H */