Invoice copy, state code in gst print format, hsn code in other sales/purchase docs (#9658)

* Invoice copy, state code in gst print format, hsn code in other sales/purchase docs

* Formatted Net Amount in item-tax-breakup

* GST print format fixes

* removed trailing whitespace

* removed trailing whitespace
diff --git a/erpnext/regional/india/address_template.html b/erpnext/regional/india/address_template.html
index 46879ad..1bcc5ad 100644
--- a/erpnext/regional/india/address_template.html
+++ b/erpnext/regional/india/address_template.html
@@ -1,6 +1,7 @@
 {{ address_line1 }}<br>{% if address_line2 %}{{ address_line2 }}<br>{% endif -%}{{ city }}<br>
-{% if state %}{{ state }}<br>{% endif -%}
-{% if pincode %}{{ pincode }}<br>{% endif -%}
+{% if gst_state %}{{ gst_state }}{% endif -%},
+{% if gst_state_number %}State Code: {{ gst_state_number }}<br>{% endif -%}
+{% if pincode %}PIN: {{ pincode }}<br>{% endif -%}
 {{ country }}<br>
 {% if phone %}Phone: {{ phone }}<br>{% endif -%}
 {% if fax %}Fax: {{ fax }}<br>{% endif -%}