drivers: Move client/drivers/executor to drivers/shared/executor

drivers/shared/executor/executor_basic.go

@@ -0,0 +1,15 @@
+// +build !linux
+
+package executor
+
+import hclog "github.com/hashicorp/go-hclog"
+
+func NewExecutorWithIsolation(logger hclog.Logger) Executor {
+	logger = logger.Named("executor")
+	logger.Error("isolation executor is not supported on this platform, using default")
+	return NewExecutor(logger)
+}
+
+func (e *UniversalExecutor) configureResourceContainer(_ int) error { return nil }
+
+func (e *UniversalExecutor) runAs(_ string) error { return nil }