Add establish_channel_with_system to the HRMP pallet

[bkontur]

Allows any parachain to have bidirectional channel with any system parachains.

Relates to: polkadot-fellows/RFCs#82
Relates to: paritytech/polkadot-sdk#3721
Relates to: paritytech/polkadot-sdk#4332

• regenerate weights for runtime_parachains::hrmp
• Does not require a CHANGELOG entry

Polkadot weights

(the threshold moved from the default 5 to 0.1 to see some differences)

subweight compare commits          --path-pattern "./relay/polkadot/**/weights/**/*.rs"          --format markdown --no-color           --change added changed          --method asymptotic --ignore-errors --threshold 0.1          remotes/polkadot-fellows/main          origin/bko-hrmp-patch

File	Extrinsic	Old	New	Change [%]
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	poke_channel_deposits	137.20us	140.03us	+2.06
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	hrmp_accept_open_channel	555.89us	563.03us	+1.28
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	hrmp_close_channel	556.97us	563.79us	+1.22
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	hrmp_init_open_channel	732.03us	740.10us	+1.10
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	force_open_hrmp_channel	1.16ms	1.17ms	+0.98
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	establish_system_channel	1.15ms	1.16ms	+0.69
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	force_process_hrmp_open	102.05ms	102.47ms	+0.42
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	force_clean_hrmp	91.52ms	91.86ms	+0.37
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	clean_open_channel_requests	16.56ms	16.61ms	+0.35
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	force_process_hrmp_close	75.41ms	75.65ms	+0.33
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	hrmp_cancel_open_request	422.12us	415.03us	-1.68
relay/polkadot/src/weights/runtime_parachains_hrmp.rs	establish_channel_with_system		1.67ms	Added

Kusama weights

(the threshold moved from the default 5 to 0.1 to see some differences)

subweight compare commits          --path-pattern "./relay/kusama/**/weights/**/*.rs"          --format markdown --no-color           --change added changed          --method asymptotic --ignore-errors --threshold 0.1          remotes/polkadot-fellows/main          origin/bko-hrmp-patch

File	Extrinsic	Old	New	Change [%]
relay/kusama/src/weights/runtime_parachains_hrmp.rs	poke_channel_deposits	137.23us	140.25us	+2.20
relay/kusama/src/weights/runtime_parachains_hrmp.rs	hrmp_close_channel	557.39us	564.18us	+1.22
relay/kusama/src/weights/runtime_parachains_hrmp.rs	hrmp_accept_open_channel	556.49us	563.23us	+1.21
relay/kusama/src/weights/runtime_parachains_hrmp.rs	hrmp_init_open_channel	735.26us	743.59us	+1.13
relay/kusama/src/weights/runtime_parachains_hrmp.rs	force_open_hrmp_channel	1.16ms	1.17ms	+0.97
relay/kusama/src/weights/runtime_parachains_hrmp.rs	establish_system_channel	1.15ms	1.16ms	+0.84
relay/kusama/src/weights/runtime_parachains_hrmp.rs	hrmp_cancel_open_request	413.79us	416.03us	+0.54
relay/kusama/src/weights/runtime_parachains_hrmp.rs	force_process_hrmp_open	101.96ms	102.43ms	+0.46
relay/kusama/src/weights/runtime_parachains_hrmp.rs	clean_open_channel_requests	16.54ms	16.61ms	+0.45
relay/kusama/src/weights/runtime_parachains_hrmp.rs	force_clean_hrmp	91.43ms	91.82ms	+0.43
relay/kusama/src/weights/runtime_parachains_hrmp.rs	force_process_hrmp_close	75.34ms	75.63ms	+0.40
relay/kusama/src/weights/runtime_parachains_hrmp.rs	establish_channel_with_system		1.67ms	Added

[acatangiu]

/merge

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