Add function to retrieve company address as JSON and update invoice procedures

- Created a new function `fds__getCompanyAddressJson` to return a company's postal address as a structured JSON object.
- Modified stored procedures `fds__createInvoice`, `fds__setInvoice`, and `fds__prepInvoice` to include a new parameter `@SendToAddressJson` for handling the address data.
- Updated the invoice table and user-defined types to accommodate the new `SendToAddressJson` field.
- Ensured that the address data is properly retrieved and stored in the invoice records.

Fuchs/js/intranet/modules/fis.inv_shared.scss

@@ -474,3 +474,22 @@
 	}
 }
 
+
+/* Conformity hint shown inside the structured recipient-address dialog (EN 16931 / DATEV). */
+.adr-conformity {
+	margin-top: 0.75rem;
+	padding: 0.6rem 0.75rem;
+	background: #f3f7fb;
+	border: 1px solid #cfe0f0;
+	border-radius: 4px;
+	font-size: 0.85rem;
+	line-height: 1.35;
+
+	.hd {
+		font-weight: 600;
+		margin-bottom: 0.2rem;
+	}
+	.tx {
+		color: #445;
+	}
+}