CHASM client codegen (temporalio#8398)

## What changed?

Added a protoc plugin to generate client for internal CHASM requests to
the history service.
A CHASM library can now define its own set of gRPC services and register
a handler for those.

I had to modify the history client files to be generic, which broke the
mock generation, so I had to hand code the tests there, which IMHO is
actually nicer than the way they were with mocks.

Also opted out of mock generation for CHASM services, there's just not
enough value there.

**NOTE**: Instead of creating three separate clients, I generated a
single layered client, with a constructor that is DI friendly. There
doesn't seem to be a good enough reason to break this out into separate
clients or make client construction configurable (for now).

**NOTE**: We can also get rid of the genrpcwrappers script eventually
and use the protoc plugin approach for all services, I decided not to do
that here though to reduce scope.

For a preview of the generated file see:
-
https://github.com/bergundy/temporal/blob/3a89614a9097eca9061b5f347c01eda735534bbe/chasm/lib/activity/proto/v1/service.proto
-
https://github.com/bergundy/temporal/blob/3a89614a9097eca9061b5f347c01eda735534bbe/chasm/lib/activity/gen/activitypb/v1/service_client.pb.go
 
## Why?

Keep all CHASM library functionality contained.

## How did you test it?
- [ ] built

Author: bergundy

Makefile

@@ -270,6 +270,9 @@ $(STAMPDIR)/protoc-gen-go-helpers-$(GO_API_VER): | $(STAMPDIR) $(LOCALBIN)
 	@touch $@
 $(PROTOC_GEN_GO_HELPERS): $(STAMPDIR)/protoc-gen-go-helpers-$(GO_API_VER)
 
+$(LOCALBIN)/protoc-gen-go-chasm: $(LOCALBIN) cmd/tools/protoc-gen-go-chasm/main.go go.mod go.sum
+	@go build -o $@ ./cmd/tools/protoc-gen-go-chasm
+
 # go-install-tool will 'go install' any package with custom target and name of binary, if it doesn't exist
 # $1 - target path with name of binary (ideally with version)
 # $2 - package url which can be installed
@@ -300,7 +303,7 @@ $(CHASM_BINPB): $(API_BINPB) $(INTERNAL_BINPB) $(CHASM_PROTO_FILES)
 	@printf $(COLOR) "Generate CHASM proto image..."
 	@protoc --descriptor_set_in=$(API_BINPB):$(INTERNAL_BINPB) -I=. $(CHASM_PROTO_FILES) -o $@
 
-protoc: $(PROTOGEN) $(MOCKGEN) $(GOIMPORTS) $(PROTOC_GEN_GO) $(PROTOC_GEN_GO_GRPC) $(PROTOC_GEN_GO_HELPERS) $(API_BINPB)
+protoc: $(PROTOGEN) $(MOCKGEN) $(GOIMPORTS) $(PROTOC_GEN_GO) $(PROTOC_GEN_GO_GRPC) $(PROTOC_GEN_GO_HELPERS) $(API_BINPB) $(LOCALBIN)/protoc-gen-go-chasm
 	@go run ./cmd/tools/protogen \
 		-root=$(ROOT) \
 		-proto-out=$(PROTO_OUT) \
@@ -309,6 +312,7 @@ protoc: $(PROTOGEN) $(MOCKGEN) $(GOIMPORTS) $(PROTOC_GEN_GO) $(PROTOC_GEN_GO_GRP
 		-protogen-bin=$(PROTOGEN) \
 		-goimports-bin=$(GOIMPORTS) \
 		-mockgen-bin=$(MOCKGEN) \
+		-protoc-gen-go-chasm-bin=$(LOCALBIN)/protoc-gen-go-chasm \
 		-protoc-gen-go-bin=$(PROTOC_GEN_GO) \
 		-protoc-gen-go-grpc-bin=$(PROTOC_GEN_GO_GRPC) \
 		-protoc-gen-go-helpers-bin=$(PROTOC_GEN_GO_HELPERS) \