feat: extend software license lifecycle data

Make license type optional and add lifetime or recurring renewal terms, license file and key storage, and provider portal URLs across the UI, API, filters, imports, translations, and migrations.

netbox_slm/tables.py

@@ -147,6 +147,7 @@ class SoftwareLicenseTable(NetBoxTable):
     installation = tables.Column(accessor="installation", linkify=True)
     tenant_group = tables.Column(accessor="tenant_group", verbose_name=_("Tenant Group"), linkify=True)
     tenant = tables.Column(accessor="tenant", linkify=True)
+    provider_portal_url = tables.Column(verbose_name=_("Provider Portal"), linkify=True)
 
     tags = columns.TagColumn(url_name="plugins:netbox_slm:softwarelicense_list")
 
@@ -161,6 +162,9 @@ class SoftwareLicenseTable(NetBoxTable):
             "stored_location",
             "start_date",
             "expiration_date",
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
             "manufacturer",
             "software_product",
             "version",
@@ -169,6 +173,7 @@ class SoftwareLicenseTable(NetBoxTable):
             "tenant",
             "support",
             "license_amount",
+            "provider_portal_url",
             "tags",
         )
         default_columns = (
@@ -181,6 +186,7 @@ class SoftwareLicenseTable(NetBoxTable):
             "tenant_group",
             "tenant",
             "expiration_date",
+            "lifetime",
             "tags",
         )