[#74] apemanager: Generate protobufs for apemanager service

* Generate protobufs.
* Make marshallers, unmarshallers, json-encoders etc.
* Create message encoding/decoding unit-tests.

Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>

rpc/apemanager.go

@@ -0,0 +1,60 @@
+package rpc
+
+import (
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/apemanager"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/rpc/common"
+)
+
+const serviceAPEManager = serviceNamePrefix + "apemanager.APEManagerService"
+
+const (
+	rpcAPEManagerAddChain    = "AddChain"
+	rpcAPEManagerRemoveChain = "RemoveChain"
+	rpcAPEManagerListChains  = "ListChains"
+)
+
+func AddChain(
+	cli *client.Client,
+	req *apemanager.AddChainRequest,
+	opts ...client.CallOption,
+) (*apemanager.AddChainResponse, error) {
+	resp := new(apemanager.AddChainResponse)
+
+	err := client.SendUnary(cli, common.CallMethodInfoUnary(serviceAPEManager, rpcAPEManagerAddChain), req, resp, opts...)
+	if err != nil {
+		return nil, err
+	}
+
+	return resp, nil
+}
+
+func RemoveChain(
+	cli *client.Client,
+	req *apemanager.RemoveChainRequest,
+	opts ...client.CallOption,
+) (*apemanager.RemoveChainResponse, error) {
+	resp := new(apemanager.RemoveChainResponse)
+
+	err := client.SendUnary(cli, common.CallMethodInfoUnary(serviceAPEManager, rpcAPEManagerRemoveChain), req, resp, opts...)
+	if err != nil {
+		return nil, err
+	}
+
+	return resp, nil
+}
+
+func ListChains(
+	cli *client.Client,
+	req *apemanager.ListChainsRequest,
+	opts ...client.CallOption,
+) (*apemanager.ListChainsResponse, error) {
+	resp := new(apemanager.ListChainsResponse)
+
+	err := client.SendUnary(cli, common.CallMethodInfoUnary(serviceAPEManager, rpcAPEManagerListChains), req, resp, opts...)
+	if err != nil {
+		return nil, err
+	}
+
+	return resp, nil
+}