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_test.go

@@ -0,0 +1,13 @@
+package system
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_LocalVersion(t *testing.T) {
+	got := GetInfo()
+	want := "development"
+	assert.Equal(t, want, got.WiretrusteeVersion)
+}