Initialize the Staking Pool Rewards

Transfers the reward tokens balance to the staking pool contract address.

**NOTE**: by design, the benefactor (funding party) must separately approve the staking pool address for the required allowance.

This can be carried out by calling approve() on the ERC20 Open Mintable, for example. The spender parameter should be the Staking Pool contract address and the amount should be the reward amount for that token as set in step 3. This must be done for each reward token.

Dependencies:

DAO needs to be created

Collateral Token needs to be whitelisted

Staking Pool needs to be created

Permissions: DAO Admin

Params:

Param name	Description	Example
daoId	the DAO identifier to for which to set the metadata	1
stakingPool	The address of the staking pool. This is required because a dao many have many associated staking pools.	0xfb2a0ea15678ba074d168653fd0d52fbdf18a64f
benefactor	The address of the funding account	0xDe9007A43772a745C434F9Eb6C519132Db2b14A5
rewards	tokens; the address of the erc20 reward token maxAmount; the maximum amount of this token that will be funded uint256 ratio; only initialized for fixed	[["0xa63c6e2af9c87768f741e1bb7f77511d23152c7b", "105000000000000000000","15000000000000000000"]]

Etherscan Link: https://goerli.etherscan.io/address/0x3d8cBBc284160D6d692d02B76Dae4bAd21902d73#writeContract#F20