Add additional modules (#19)

* Add modules

* Rename AWS region

* Fix AWS region mod

* Add AWS logo

* Fix AWS logo color

* Add comment

* Add icons

* Delete undocumented

* Fix maintainer

* Fix icons

aws-region/README.md

@@ -0,0 +1,65 @@
+---
+display_name: AWS Region
+description: A parameter with human region names and icons
+icon: ../.icons/aws.svg
+maintainer_github: coder
+verified: true
+tags: [helper, parameter]
+---
+
+# AWS Region
+
+A parameter with all AWS regions. This allows developers to select
+the region closest to them.
+
+## Examples
+
+### Default Region
+
+Customize the preselected parameter value:
+
+```hcl
+module "aws-region" {
+    source = "https://registry.coder.com/modules/aws-region"
+    default = "us-east-1"
+}
+
+provider "aws" {
+    region = module.aws_region.value
+}
+```
+
+### Customize Regions
+
+Change the display name and icon for a region:
+
+```hcl
+module "aws-region" {
+    source = "https://registry.coder.com/modules/aws-region"
+    custom_names = {
+        "fra": "Awesome Germany!"
+    }
+    custom_icons = {
+        "fra": "/icons/smiley.svg"
+    }
+}
+
+provider "aws" {
+    region = module.aws_region.value
+}
+```
+
+### Exclude Regions
+
+Hide the `fra` region:
+
+```hcl
+module "aws-region" {
+    source = "https://registry.coder.com/modules/aws-region"
+    exclude = [ "fra" ]
+}
+
+provider "aws" {
+    region = module.aws_region.value
+}
+```