start implementing gw serve mux support

pkg/srv/grpc/opts/config.go

@@ -0,0 +1,30 @@
+package opts
+
+import (
+	"context"
+
+	"github.com/grpc-ecosystem/grpc-gateway/runtime"
+	"google.golang.org/grpc"
+
+	"gitea.libretechconsulting.com/rmcguire/go-app/pkg/config"
+)
+
+type GRPCOpts struct {
+	*config.GRPCConfig
+	*AppGRPC
+}
+
+type AppGRPC struct {
+	Services           []*GRPCService
+	UnaryInterceptors  []grpc.UnaryServerInterceptor
+	StreamInterceptors []grpc.StreamServerInterceptor
+	GRPCOpts           []grpc.ServerOption
+	GRPCDone           <-chan error
+}
+
+type GRPCService struct {
+	Name                string                                                             // Descriptive name of service
+	Type                *grpc.ServiceDesc                                                  // Type (from protoc generated code)
+	Service             any                                                                // Implementation of GRPCService.Type (ptr)
+	GwRegistrationFuncs []func(context.Context, *runtime.ServeMux, *grpc.ClientConn) error // Gateway regustration handler funcs
+}