Prop 66: Update ELYS Pool multiplier to 1.5, max EDEN APR for staking to 0.4, max EDEN APR for pool to 0.5 and all vault multipliers to 0.35

This proposal updates ELYS Pool (id: 4) multiplier to 1.5, max EDEN APR for staking to 0.4, max EDEN APR for pool to 0.5 and all vault (from id 32767 to 32783) multipliers to 0.35