Updating copyright information

NOTICE

@@ -0,0 +1,35 @@
+GOBL (Go Business Language) (https://gobl.org)
+Copyright 2021-2022 Invopop Ltd.
+
+This product includes software developed by Invopop Ltd. (UK)
+(https://invopop.com).
+
+This product also includes the following third party components:
+
+- Go JSON Schema Reflection (https://github.com/alecthomas/jsonschema)
+  The MIT License
+  Copyright (C) 2014 Alec Thomas
+
+- ozzo-validation (https://github.com/go-ozzo/ozzo-validation)
+  The MIT License
+  Copyright (c) 2016, Qiang Xue
+
+- Google UUID (https://github.com/google/uuid)
+  BSD 3-Clause "New" or "Revised" License
+  Copyright (c) 2009,2014 Google Inc. All rights reserved.
+
+- Google Cloud Go (https://github.com/googleapis/google-cloud-go)
+  Apache Licnese 2.0
+  Copyright (c) 2014 Google LLC
+
+- Go JOSE (https://github.com/go-jose/go-jose)
+  Apache Licnese 2.0
+  Copyright 2014 Square Inc.
+
+- Testify (https://github.com/stretchr/testify)
+  The MIT License
+  Copyright (c) 2012-2020 Mat Ryer, Tyler Bunnell and contributors.
+
+- Go Cryptography (golang.org/x/crypto)
+  License: https://github.com/golang/go/blob/master/LICENSE
+  Copyright (c) 2009 The Go Authors. All rights reserved.

README.md

@@ -1,8 +1,10 @@
 # GOBL
 
-![GOBL Logo](https://github.com/invopop/gobl/blob/main/gobl_logo_black_rgb.svg?raw=true)
+<img src="https://github.com/invopop/gobl/blob/main/gobl_logo_black_rgb.svg?raw=true" width="181" height="219" alt="GOBL Logo">
 
-Go Business Language. 
+Go Business Language.
+
+Released under the Apache 2.0 [LICENSE](https://github.com/invopop/gobl/blob/main/LICENSE), Copyright 2021,2022 [Invopop Ltd.](https://invopop.com).
 
 ## Introduction
 
@@ -18,14 +20,10 @@ In our opinion, Go is an ideal language for this type of project due to its simp
 
 ### Packages
 
-
-
 ### Documents
 
-
 ### Envelope
 
-
 ## Serialization
 
 ### Amounts & Percentages
@@ -41,4 +39,3 @@ To get around the issues with sequential numbers, the [UUID standard](https://to
 The GoBL library forces you to use UUIDs instead of sequential IDs for anything that could be referenced in the future. To enforce this fact, instead of naming fields `id`, we make an effort to call them `uuid`.
 
 Sometimes sequential IDs are however required, usually for human consumption purposes such as ensuring order when generating invoices so that authorities can quickly check that dates and numbers are in order. Our recommendation for such codes is to use a dedicated service to generate sequential IDs based on the UUIDs, such as [Invopop's Sequence Service](https://invopop.com).
-

bill/invoice.go

@@ -11,7 +11,7 @@ import (
 	"github.com/invopop/gobl/tax"
 	"github.com/invopop/gobl/uuid"
 
-	validation "github.com/go-ozzo/ozzo-validation"
+	validation "github.com/go-ozzo/ozzo-validation/v4"
 )
 
 // Invoice represents a payment claim for goods or services supplied under

bill/line.go

@@ -1,7 +1,7 @@
 package bill
 
 import (
-	validation "github.com/go-ozzo/ozzo-validation"
+	validation "github.com/go-ozzo/ozzo-validation/v4"
 	"github.com/invopop/gobl/num"
 	"github.com/invopop/gobl/org"
 	"github.com/invopop/gobl/tax"

go.mod

@@ -5,7 +5,6 @@ go 1.14
 require (
 	cloud.google.com/go v0.65.0
 	github.com/alecthomas/jsonschema v0.0.0-20211228220459-151e3c21f49d
-	github.com/go-ozzo/ozzo-validation v3.6.0+incompatible
 	github.com/go-ozzo/ozzo-validation/v4 v4.3.0
 	github.com/google/uuid v1.1.2
 	github.com/square/go-jose/v3 v3.0.0-20200630053402-0a67ce9b0693

go.sum

@@ -51,8 +51,6 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-ozzo/ozzo-validation v3.6.0+incompatible h1:msy24VGS42fKO9K1vLz82/GeYW1cILu7Nuuj1N3BBkE=
-github.com/go-ozzo/ozzo-validation v3.6.0+incompatible/go.mod h1:gsEKFIVnabGBt6mXmxK0MoFy+cZoTJY6mu5Ll3LVLBU=
 github.com/go-ozzo/ozzo-validation/v4 v4.3.0 h1:byhDUpfEwjsVQb1vBunvIjh2BHQ9ead57VkAEY4V+Es=
 github.com/go-ozzo/ozzo-validation/v4 v4.3.0/go.mod h1:2NKgrcHl3z6cJs+3Oo940FPRiTzuqKbvfrL2RxCj6Ew=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=