Channel initialization timeout (cosmos#406)

* add provider-based timeout params

* add InitTimeoutTimestamp to store

* add init timeout logic

* params boilerplate code & making tests pass

* add TestInitTimeout* e2e tests

* improve e2e tests; add test case to TestUndelegationDuringInit

* remove VSC timeout

* remove VSC timeout param

* add testcase to TestValidateParams

* handle StopConsumerChain error & gofmt

* Fix init timeout conflicts (cosmos#409)

* Importable e2e tests (cosmos#401)

* fixes

* add comment to GetInitTimeoutTimestamp

* Update proto/interchain_security/ccv/provider/v1/provider.proto

Co-authored-by: Aditya <adityasripal@gmail.com>

* fix formatting in proto file

* add comment to SetConsumerChain

* fix typo

* add comment re. EndBlock order

* change name of testcase in TestUndelegationDuringInit

Co-authored-by: Shawn Marshall-Spitzbart <44221603+smarshall-spitzbart@users.noreply.github.com>
Co-authored-by: Aditya <adityasripal@gmail.com>

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

@@ -58,11 +58,14 @@ message ConsumerAdditionProposal {
 // Params defines the parameters for CCV Provider module
 message Params {
   ibc.lightclients.tendermint.v1.ClientState template_client = 1;
+  // TrustingPeriodFraction is used to compute the consumer and provider IBC client's TrustingPeriod from the chain defined UnbondingPeriod
+  int64 trusting_period_fraction = 2;
   // Sent IBC packets will timeout after this duration
-  google.protobuf.Duration ccv_timeout_period = 2
+  google.protobuf.Duration ccv_timeout_period = 3
       [(gogoproto.nullable) = false, (gogoproto.stdduration) = true];
-  // TrustingPeriodFraction is used to compute the consumer and provider IBC client's TrustingPeriod
-  int64 trusting_period_fraction = 3;
+  // The channel initialization (IBC channel opening handshake) will timeout after this duration
+  google.protobuf.Duration init_timeout_period = 4
+      [(gogoproto.nullable) = false, (gogoproto.stdduration) = true]; 
 }
 
 message HandshakeMetadata {