Add config-read and run thread_birds with arguments.

[Markuu-s]

No description provided.

[ol-imorozko]

Please rebase your branch onto the latest main.
There will be conflicts because, for example, we don't use push/pop boilerplate anymore and instead do this:

class config_t
{
public:
	config_t() = default;

	SERIALIZABLE(nat64stateful_id, dscp_mark_type, dscp, ipv6_prefixes, ipv4_prefixes, announces, next_module);

public:
	nat64stateful_id_t nat64stateful_id;
	common::eDscpMarkType dscp_mark_type{common::eDscpMarkType::never};
	uint8_t dscp{};
	std::vector<common::ipv6_prefix_t> ipv6_prefixes;
	std::vector<common::ipv4_prefix_t> ipv4_prefixes;
	std::set<common::ip_prefix_t> announces;
	controlplane::state_timeout state_timeout;
	std::string next_module;
	common::globalBase::flow_t flow;
};

That's just an example of the existing code. Note how we use the SERIALIZABLE macro with the names of the fields used for serialization

[Markuu-s]

Updated bird-import-proto and this branches.