Create campaign - deposit to channel

[ivopaunov]

The way campaign openin will work is as follow

1. user input for cratives, targetig, amounts etc. https://github.com/orgs/AmbireTech/projects/54/views/1?pane=issue&itemId=26684949
2. When everithing is ready (validated) on the frontend (maybe additional backend validation) deposit with campaign budget to the OUTPACE channel is required.
3. Deposit to the OUTPACE will e done by sending transaction from the user's "Ambire Wallet" using the SDK.

outpaceContract.deposit(channel, recipient, amount) ...

https://github.com/AmbireTech/adex-protocol-eth/blob/4ddebac4109e9709c4cc862ee0708f208dac9ee2/contracts/OUTPACE.sol#L51

4. We send the campaign data to the backend with the transaction hash when the transaction is mined.

To be done:

• Deposit transaction to OTPACE channels
• Transaction confirmation on the frontend before sending the campaign data to backend