feat: x/blocksdk types and keeper outline (#187)

* module proto

* lane proto

* proto-gen

* proto-format

* regenerate

* genesis

* stub

* test

* comment

* new keeper functions

* finalize

* lint fix

* proto format

* encounteredLanes

proto/sdk/blocksdk/v1/blocksdk.proto

@@ -27,10 +27,11 @@ message Lane {
     (gogoproto.nullable) = false
   ];
 
-  // order is the priority ordering of the Lane when processed in PrepareProposal
-  // and ProcessProposal. Lane orders should be set in order of priority starting from 0,
-  // monotonically increasing and non-overlapping. A lane with a lower order value
-  // will have a higher priority over a lane with a higher order value.  For example,
-  // if LaneA has priority of 0 and LaneB has a priority of 1, LaneA has priority over LaneB.
+  // order is the priority ordering of the Lane when processed in
+  // PrepareProposal and ProcessProposal. Lane orders should be set in order of
+  // priority starting from 0, monotonically increasing and non-overlapping. A
+  // lane with a lower order value will have a higher priority over a lane with
+  // a higher order value.  For example, if LaneA has priority of 0 and LaneB
+  // has a priority of 1, LaneA has priority over LaneB.
   uint64 order = 3;
 }

proto/sdk/blocksdk/v1/genesis.proto

@@ -0,0 +1,13 @@
+syntax = "proto3";
+package sdk.blocksdk.v1;
+
+option go_package = "github.com/skip-mev/block-sdk/x/blocksdk/types";
+
+import "gogoproto/gogo.proto";
+import "sdk/blocksdk/v1/blocksdk.proto";
+
+// GenesisState defines the genesis state of the x/blocksdk module.
+message GenesisState {
+  // lanes is the list of all configured lanes at genesis time.
+  repeated Lane lanes = 1 [ (gogoproto.nullable) = false ];
+}