Add an include_sensitive parameter to tx_memory_pool::get_pool_for_rpc
(and its core passthrough), mirroring the include_sensitive_data
parameter on the HTTP analog get_transactions_and_spent_keys_info.
When false, receive_time and last_relayed_time are zeroed using the
same masking already applied on the HTTP path.
The ZMQ handler in daemon_handler.cpp passes !m_restricted, so
--restricted-zmq-rpc callers now receive the same privacy-filtered view
as restricted HTTP callers instead of the unfiltered timing metadata
they previously got. Stem-phase txs continue to be excluded regardless
(relay_category::broadcasted filter unchanged).
Refs #10529.
(cherry picked from commit 878c781764e62d8616ae49a42baf05366a1d7336)
