Add client version to the client app and send it to the management service (#218)

* moved wiretrustee version from main to system.info

* added wiretrustee version for all supported platforms

* typo corrected

* refactor: use single WiretrusteeVersion() func to get version of the client

Co-authored-by: braginini <bangvalo@gmail.com>

client/system/info.go

@@ -1,14 +1,23 @@
 package system
 
+// this is the wiretrustee version
+// will be replaced with the release version when using goreleaser
+var version = "development"
+
 //Info is an object that contains machine information
 // Most of the code is taken from https://github.com/matishsiao/goInfo
 type Info struct {
-	GoOS      string
-	Kernel    string
-	Core      string
-	Platform  string
-	OS        string
-	OSVersion string
-	Hostname  string
-	CPUs      int
+	GoOS               string
+	Kernel             string
+	Core               string
+	Platform           string
+	OS                 string
+	OSVersion          string
+	Hostname           string
+	CPUs               int
+	WiretrusteeVersion string
+}
+
+func WiretrusteeVersion() string {
+	return version
 }