[ADD] Welcome Hantec Core API Module

[JAntonioSalas]

This module provides comprehensive tools to manage sales orders, invoices, purchase orders,shipping information,
and customer contacts in Odoo. It includes endpoints for creating and updating various entities,
enhancing the overall efficiency and reliability of business processes.

Endpoints included:

Contact Management:

• /search_contact: Search contacts by email, phone, mobile, or name
• /create_contact: Create or find existing contacts
• /update_contact/: Update contact information
• /create_delivery_address, /create_invoice_address: Manage addresses

Sale Order Operations:

• /create_sale_order: Create new sale orders
• /update_sale_order/: Update sale order details
• /confirm_sale_order/: Confirm sale orders
• /send_message_sale_order/: Post messages to order chatter

Delivery & Returns:

• /validate_delivery/: Validate delivery pickings
• /return_delivery/: Create return pickings
• /get_shipping_info/: Retrieve shipping information

Invoicing & Payments:

• /invoice_sale_order/: Create invoices from sale orders
• /create_schedule_activity_invoice: Create scheduled activities for invoices
• /register_payment_invoice/: Register invoice payments
• /stamp_invoice/: Stamp invoices (Mexican CFDI)
• /create_credit_note/: Create credit notes
• /update_credit_note/<credit_note>: Confirm credit notes
• /send_invoice_by_email/: Send invoices via email
• /download_invoice/: Download invoice PDF and XML

Inventory:

• /get_inventory_by_lot: Query inventory by lot/serial
• /update_move_line_quant_by_name: Update stock move line quants
• /get_product_id: Get product ID by SKU
• /get_product_stock: Get product stock by location

Purchase Order

• /create_purchase_order: Create and confirm purchase orders
• /cancel_purchase_order/<purchase.order>: Cancel purchase orders
• /invoice_purchase_order/<purchase.order>: Create vendor bills from purchase orders

Reception:

• /get_reception_info/<purchase.order>: Get reception info for purchase orders
• /get_reception_lines/<stock.picking>: Get reception lines for stock pickings
• /validate_reception/<stock.picking>: Validate receptions for stock pickings
• /return_reception/<purchase.order>: Create return to vendor for purchase orders

Utilities:

• /get_states/: Get states list by country
• /get_localities/: Get localities list by state
• /create_schedule_activity: Create scheduled activities
• /get_journals: Retrieve accounting journals
• /get_picking_types: Retrieve stock picking types
• /get_taxes: Retrieve tax information