Have version infomation in one place/file.

version.go

@@ -0,0 +1,11 @@
+package main
+
+var SPACEACE string
+var SPACEACE_VERSION string
+var SPACEACE_COPYRIGHT string
+
+func init() {
+	SPACEACE = "Space Ace"
+	SPACEACE_VERSION = "0.0.2"
+	SPACEACE_COPYRIGHT = "(C) 2021 Bugz, Red-Green Software"
+}