Recommended BoundedType for some system params

[wangjj9219]

after #2345 merged, we should review system params, decide which params should be replaced with BoundedType, with resonable range and max change abs

[wangjj9219]

liquidation ratio for CDP

related:

• field liquidation_ratio of RiskManagementParams

reasonable bounded for liquidation ratio:

• min: 0%
• max: Ratio::max()
• max change abs: 50%

required collateral ratio for CDP

related:

• field required_collateral_ratio of RiskManagementParams

reasonable bounded for required collateral ratio:

• min: 100%
• max: Ratio::max()
• max change abs: 50%

stability fee for CDP

related:

• field interest_rate_per_sec of RiskManagementParams

reasonable bounded for interest_rate_per_sec:

• min: 0%
• max: Rate::from_rational(21979553000, 10^18) // Annual interest rate 100%
• max change abs: Rate::from_rational(3022266000, 10^18) // 10% ~ 19%