Add invoicing search, recurring, update, conditional, record tools

[shrir-j]

Tools added:

1. Fully update invoice and recurring
2. Delete invoice
3. Record payment for invoice
4. Record refund for invoice
5. Cancel auto reminders for invoice
6. Create conditional rules
7. Get recurring series
8. Delete recurring series
9. Cancel recurring series
10. Search recurring and invoice
11. Generate next invoice number