rlmesh_tag_param_list_get
A lent struct: struct_size is the library's own sizeof; read a field only if offsetof(field) + sizeof(field) <= p->struct_size, else treat it as its _INIT value. NULL past the end.
const RLMeshTagParam* rlmesh_tag_param_list_get(
const RLMeshTagParamList* tag_param_list,
size_t index
)