chore: added CODEOWNERS (#3966)

* added CODEOWNERS file

* updated CODEOWNERS file

* Update CODEOWNERS

* Update CODEOWNERS

---------

Co-authored-by: Shubham9t9 <shubhamkumar47022@gmai.com>
Co-authored-by: Prakarsh <71125043+prakarsh-dt@users.noreply.github.com>

.github/CODEOWNERS

@@ -0,0 +1,12 @@
+#ALL
+* @vikramdevtron @kripanshdevtron @nishant-d
+
+#DOCS
+docs/ @ashokdevtron @uxarya-d @prakarsh-dt
+
+#Helm Charts
+charts/devtron/ @prakarsh-dt @pawan-mehta-dt @nishant-d
+scripts/devtron-reference-helm-charts @prakarsh-dt @pawan-mehta-dt @nishant-d
+
+#Github Specific
+.github/ @prakarsh-dt @nishant-d