Merge branch 'feature/PRXS-1067-PerxisGoVersion' into 'feature/1004-AddPublicEntities'

Добавлен version

See merge request perxis/perxis-go!14

pkg/version/version.go

+package version
+
+import (
+	"fmt"
+)
+
+type Version struct {
+	ServerVersion string
+	APIVersion    string
+	Commit        string
+	BuildTime     string
+	BuildNumber   int
+}
+
+func (v *Version) String() string {
+	return fmt.Sprintf("%s-api%s-%s build: %d (%s)", v.ServerVersion, v.APIVersion, v.Commit, v.BuildNumber, v.BuildTime)
+}