Imports of multiple-service command

PathSynopsis
github.com/gin-gonic/ginPackage gin implements a HTTP web framework called gin.
golang.org/x/sync/errgroupPackage errgroup provides synchronization, error propagation, and Context cancelation for groups of goroutines working on subtasks of a common task.
logPackage log implements a simple logging package.
net/httpPackage http provides HTTP client and server implementations.
timePackage time provides functionality for measuring and displaying time.