Add `pallet-proxy`

[khssnv]

[khssnv]

Pallet proxy added to the fastchain runtime in a draft PR QuantumFusion-network/qf-solochain#140.

[khssnv]

Non-trivial configuration, decided to postpone this to the next runtime upgrade. On hold.

[khssnv]

Testing proxy locally. With current configuration Any proxy works correctly, but asset issuance transaction through "NonTransfer" proxy fails with system.CallFiltered error, investigating.

[khssnv]

Added the same proxy types as in Polkadot’s Asset Hub to the fastchain runtime. The Polkadot/Substrate Portal displays only 4 of them instead of the full list of 7. Blocked, asked @statictype and @Vsevolod-Rusinskiy for help.