🔨 Move cli folder contents into project root (#1253)

* Remove `logger` module

* Remove `shared` module

* Move `cli` folder contents into project root

* Fix linter

* Change the module name from `github.com/kubeshark/kubeshark/cli` to `github.com/kubeshark/kubeshark`

* Set the default `Makefile` rule to `build`

* Add `lint` rule

* Fix the linter errors

semver/semver.go

@@ -0,0 +1,56 @@
+package semver
+
+import (
+	"regexp"
+)
+
+type SemVersion string
+
+func (v SemVersion) IsValid() bool {
+	re := regexp.MustCompile(`\d+`)
+	breakdown := re.FindAllString(string(v), 3)
+
+	return len(breakdown) == 3
+}
+
+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
+}
+
+func (v SemVersion) GreaterThan(v2 SemVersion) bool {
+	if v.Major() > v2.Major() {
+		return true
+	} else if v.Major() < v2.Major() {
+		return false
+	}
+
+	if v.Minor() > v2.Minor() {
+		return true
+	} else if v.Minor() < v2.Minor() {
+		return false
+	}
+
+	if v.Patch() > v2.Patch() {
+		return true
+	}
+
+	return false
+}