Add Gitea and Mail modules with configuration and resources

- Created Gitea module with outputs, provider, and variables for deployment.
- Implemented Mail module including configuration for Dovecot and Postfix, along with necessary resources such as secrets, config maps, and deployments.
- Added Python script for bcrypt password hashing and integrated it into the Mail module.
- Defined persistent volumes and claims for Seafile module, along with Nginx configuration for serving content.
- Established necessary variables for all modules to ensure flexibility and configurability.

terraform/modules/seafile/variables.tf

@@ -0,0 +1,23 @@
+variable "persistent_folder" {
+  description = "The path to the persistent folder"
+  type        = string
+}
+
+variable "primary_domain" {
+  description = "The primary domain for the websites"
+  type        = string
+}
+
+variable "tag" {
+  description = "The version of the websites to install"
+  type        = string
+  default     = "stable-alpine"
+}
+
+variable "websites" {
+  description = "A list of websites to be deployed"
+  type = map(object({
+    domain_name = string
+    fqdn        = list(string)
+  }))
+}