Replace hardcoded constants with params (cosmos#393)

* changes

* edits

* Update params_test.go

* small

* Update genesis_test.go

* remove "num" from historical entries param

* comment

* use params p1

* use params p2

* use params p3

* p4

* change default transfer timeout period

* Update proposal_test.go

* default historical entries

* is negative

* add test case

* forgot one

* comment

proto/interchain_security/ccv/consumer/v1/consumer.proto

@@ -30,9 +30,23 @@ message Params {
   // provider handshake procedure.
   string distribution_transmission_channel = 3;
   string provider_fee_pool_addr_str = 4;
-  // Sent IBC packets will timeout after this duration
+  // Sent CCV related IBC packets will timeout after this duration
   google.protobuf.Duration ccv_timeout_period = 5
       [(gogoproto.nullable) = false, (gogoproto.stdduration) = true];
+
+  // Sent transfer related IBC packets will timeout after this duration
+  google.protobuf.Duration transfer_timeout_period = 6
+      [(gogoproto.nullable) = false, (gogoproto.stdduration) = true];
+
+  // The fraction of tokens allocated to the consumer redistribution address
+  // during distribution events. The fraction is a string representing a
+  // decimal number. For example "0.75" would represent 75%.
+  string consumer_redistribution_fraction = 7;
+
+  // The number of historical info entries to persist in store.
+  // This param is a part of the cosmos sdk staking module. In the case of 
+  // a ccv enabled consumer chain, the ccv module acts as the staking module.
+  int64 historical_entries = 8;
 }
 
 // LastTransmissionBlockHeight is the last time validator holding

proto/interchain_security/ccv/provider/v1/provider.proto

@@ -62,6 +62,8 @@ message Params {
   // Sent IBC packets will timeout after this duration
   google.protobuf.Duration ccv_timeout_period = 2
       [(gogoproto.nullable) = false, (gogoproto.stdduration) = true];
+  // TrustingPeriodFraction is used to compute the consumer and provider IBC client's TrustingPeriod
+  int64 trusting_period_fraction = 3;
 }
 
 message HandshakeMetadata {