Change all instances of networkId to chainId (#2313)

* abi-gen/test: recompile contract fixtures for 3.0

It seems this hadn't been done since the merge with the 3.0 branch.

* Sync `monorepo$ yarn test` exclusions to CI config

* sra-spec: correct typo

* contract-wrappers: TODO after coord.-server update

* utils: fix typo in comment

* Refactor networkId to chainId everywhere

* Update CHANGELOGs

packages/contract-wrappers/src/index.ts

@@ -103,7 +103,7 @@ export {
     LogWithDecodedArgs,
     CompilerOpts,
     StandardContractOutput,
-    ContractNetworks,
+    ContractChains,
     EventParameter,
     TupleDataItem,
     TxDataPayable,
@@ -116,7 +116,7 @@ export {
     LogEntry,
     RawLog,
     CompilerSettings,
-    ContractNetworkData,
+    ContractChainData,
     EIP1193Event,
     JSONRPCRequestPayload,
     JSONRPCErrorCallback,