Refactor / chain endpoints

[vic-en]

Before submitting this PR, please make sure:

• Your code builds clean without any errors or warnings
• You are using approved title ("feat/", "fix/", "docs/", "refactor/")

A description of the changes proposed in the pull request:
This PR refactors chain related endpoints to a new /chain/* endpoint.
List of refactored endpoints is as follows:

• /evm/allowances ====> /chain/allowances
• /evm/cancel ====> /chain/cancel
• /evm/approve ====> /chain/approve
• /evm/nonce ====> /chain/nonce
• /algorand/opt-in====> /chain/approve
• /algorand/assets====> /chain/tokens
• /algorand/balances ====> /chain/balances
• /algorand/poll ====> /chain/poll
• /cosmos/poll====> /chain/poll
• /cosmos/balances ====> /chain/balances
• /injective/poll====> /chain/poll
• /injective/balances ====> /chain/balances
• /injective/transfer/to/bank ====> /chain/transfer
• /injective/transfer/fom/bank ====> /chain/transfer
• /near/poll====> /chain/poll
• /near/balances ====> /chain/balances
• /near/tokens====> /chain/balances
• /network/balances ====> /chain/balances
• /network/status ====> /chain/status
• /network/poll ====> /chain/poll
• /network/tokens ====> /chain/tokens
• /network/config ====> /chain/config

Tests performed by the developer:

• Unit test.
• Random Curl tests on certain chains.
• End-to-end testing with Refactor / chain endpoints hummingbot#6445

Tips for QA testing:

• Full Curl test.
• End-to-end testing with Refactor / chain endpoints hummingbot#6445

[fengtality]

The nonce Swagger docs are wrong, as it expects address, not privateKey

[fengtality]

LGTM - I think the Swagger docs need updating, but that shouldn't block merge.

QA: Please test this PR on the following chains / networks:

• Ethereum Goerli
• BSC Mainnet
• Polygon Mainnet
• Avalanche Mainnet

For each chain, using a new wallet:

1. Connect wallet to a DEX on that chain
2. Run approve-tokens command for a token pair
3. Run AMM-ARB strategy between that pair and a CEX pair

[rapcmia]

PR update:

• Setup this PR and 6445 gateway connected successfully
• Add old and new wallet on Ethereum-Goerli and BSC-mainnet
• Run curl tests:
  • Port and connectors ✅
  • Add wallet and remove, list all added wallet ✅
  • Network balance ✅
  • Allowance ✅
  • Approve ✅
  • Check poll ✅
  • Check price and trade ✅
• Observe client behavior when running AMM-Arbitrage using new wallet (uniswap-goerli)
  • Approve tokens ✅
  • Connector-tokens ✅
  • Start the strategy and check arbitrage opportunity

Pending:

• Client : Observe behavior when doin arbitrage/trade
• Polygon and Avalanche mainnet