Add TON support

[brewmaster012]

Support the Telegram Open Network (TON) in the following sequences

1. ZRC20 deposit and withdraw support for TON token
2. ZRC20 depositAndCall() from TON network with TON token
3. ZRC20 deposit/depositAndCall/withdraw for TON fungible token such as Jetton
4. ZRC20 withdrawAndCall() -- to be researched further how this would look like, as cross contract call on TON is asynchronous.

Reference design is the Solana support: #2506
Particularly the Gateway contract on TON can reference the solana program https://github.com/zeta-chain/protocol-contracts-solana
The Gateway contract will need to verify the TSS ECDSA signature in the contract itself, and associated guards against
replay on the same chain (via nonce), replay on other chains (via chainid), and basic commitment in the signature against message.

Is your feature request related to a problem? Please describe.
No

Describe the solution you'd like
Omnichain support for TON assets and remote call.

Describe alternatives you've considered
Alternative would be to

1. not support TON

Motivation and Context
TON is an emerging blockchain that is currently TOP 10 by market capitalization. It's also a heterogenous chain which
would benefit much from the abstraction zetachain provides.

Implementation

Tasks

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1. 💎 TON testnet integration #2716
   12 of 15
   chain:ton epic +2
   

[lumtis]

Added EPIC task here: #2549

Would be good to look in the differences with Solana

[swift1337]

Linking #2716. Please note that

ZRC20 deposit/depositAndCall/withdraw for TON fungible token such as Jetton

Is not included in the implementation scope as of now. TON contracts are upgradable, so we can improve this is the future.

Please also note each jetton type of each account is a separate smart contract instance