Versioning (#116)

Add versioning check

shared/semver/semver.go

@@ -0,0 +1,28 @@
+package semver
+
+import (
+	"regexp"
+)
+
+type SemVersion string
+
+func (v SemVersion) Breakdown() (string, string, string) {
+	re := regexp.MustCompile(`\d+`)
+	breakdown := re.FindAllString(string(v), 3)
+	return breakdown[0], breakdown[1], breakdown[2]
+}
+
+func (v SemVersion) Major() string {
+	major, _, _ := v.Breakdown()
+	return major
+}
+
+func (v SemVersion) Minor() string {
+	_, minor, _ := v.Breakdown()
+	return minor
+}
+
+func (v SemVersion) Patch() string {
+	_, _, patch := v.Breakdown()
+	return patch
+}