WIP: Implement WebDAV server

- Add a WebDAV server implementation using the `vweb` framework.
- The server supports basic authentication, request logging, and essential WebDAV methods.
- Implements file operations, authentication, and request logging.

Co-authored-by: mahmmoud.hassanein <mahmmoud.hassanein@gmail.com>

lib/vfs/webdav/bin/main.v

@@ -0,0 +1,67 @@
+import freeflowuniverse.herolib.vfs.webdav
+import cli { Command, Flag }
+import os
+
+fn main() {
+	mut cmd := Command{
+		name:        'webdav'
+		description: 'Vlang Webdav Server'
+	}
+
+	mut app := Command{
+		name:        'webdav'
+		description: 'Vlang Webdav Server'
+		execute:     fn (cmd Command) ! {
+			port := cmd.flags.get_int('port')!
+			directory := cmd.flags.get_string('directory')!
+			user := cmd.flags.get_string('user')!
+			password := cmd.flags.get_string('password')!
+
+			mut server := webdav.new_app(
+				root_dir:    directory
+				server_port: port
+				user_db:     {
+					user: password
+				}
+			)!
+
+			server.run()
+			return
+		}
+	}
+
+	app.add_flag(Flag{
+		flag:          .int
+		name:          'port'
+		abbrev:        'p'
+		description:   'server port'
+		default_value: ['8000']
+	})
+
+	app.add_flag(Flag{
+		flag:        .string
+		required:    true
+		name:        'directory'
+		abbrev:      'd'
+		description: 'server directory'
+	})
+
+	app.add_flag(Flag{
+		flag:        .string
+		required:    true
+		name:        'user'
+		abbrev:      'u'
+		description: 'username'
+	})
+
+	app.add_flag(Flag{
+		flag:        .string
+		required:    true
+		name:        'password'
+		abbrev:      'pw'
+		description: 'user password'
+	})
+
+	app.setup()
+	app.parse(os.args)
+}