Implement OCEX module in OB

[ap211unitech]

📝 Feedback Description

Currently, OCEX transactions are being handled inside OB itself, core logic is present in OB, which makes code complex and provides higher chances of bugs. We have already created OCEX module in polkadex-ts, so we will be replacing all the direct OCEX calls with polkadex-ts OCEX module.

In future, If anything changes in OCEX pallet, we will just need to update inside polkadex-ts only.

Tasks -

1. createProxyAccount
2. removeProxyAccount
3. getProxies - (readStrategy/getTradingAddresses function)
4. deposit (i.e. transfer from funding to trading account)
5. transfer from one account to another for any asset (useAssetTransfer hook)
6. Need to refactor useCall hook - code duplication is there