problem: protobuf code is not included with dshackle

proto/common.proto

@@ -0,0 +1,68 @@
+syntax = "proto3";
+package emerald;
+option java_package = "io.emeraldpay.api.proto";
+
+message Chain {
+    ChainRef type = 1;
+}
+
+enum ChainRef {
+    CHAIN_UNSPECIFIED = 0;
+
+    CHAIN_BITCOIN = 1;
+    CHAIN_GRIN = 2;
+
+    CHAIN_ETHEREUM = 100;
+    CHAIN_ETHEREUM_CLASSIC = 101;
+
+    // Sidechains and state channels
+    CHAIN_LIGHTNING = 1001;
+
+    // Testnets
+    CHAIN_MORDEN = 10001;
+    CHAIN_KOVAN = 10002;
+    CHAIN_TESTNET_BITCOIN = 10003;
+    CHAIN_FLOONET = 10004;
+
+    // Non-standard starts from 50000
+}
+
+message SingleAddress {
+    string address = 1;
+}
+
+message XpubAddress {
+    bytes xpub = 1;
+    string path = 2;
+    uint64 start = 3;
+    uint64 limit = 4;
+}
+
+message MultiAddress {
+    repeated SingleAddress addresses = 1;
+}
+
+message ReferenceAddress {
+    uint64 refid = 1;
+}
+
+message AnyAddress {
+    oneof addr_type {
+        SingleAddress address_single = 1;
+        MultiAddress address_multi = 2;
+        XpubAddress address_xpub = 3;
+        ReferenceAddress address_ref = 4;
+    }
+}
+
+message Asset {
+    ChainRef chain = 1;
+    string code = 2;
+}
+
+message BlockInfo {
+    uint64 height = 1;
+    string block_id = 2;
+    uint64 timestamp = 3;
+    bytes weight = 4;
+}