Add start of nixie-server

Signed-off-by: Marcel Müller <neikos@neikos.email>

nixie-server/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "nixie-server"
+edition.workspace = true
+version.workspace = true
+license.workspace = true
+authors.workspace = true
+readme.workspace = true
+
+[dependencies]

nixie-server/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}