Add proc macro to implement models

Signed-off-by: Lee Smet <lee.smet@hotmail.com>

heromodels/examples/custom_model_example.rs

@@ -0,0 +1,37 @@
+use heromodels::model;
+use heromodels::models::core::model::{BaseModelData, Model, Index, IndexKey};
+use serde::{Serialize, Deserialize};
+
+// Define a custom attribute for indexing
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[model]
+pub struct CustomUser {
+    pub base_data: BaseModelData,
+    
+    // Mark fields for indexing with a comment
+    // #[index]
+    pub login: String,
+    
+    // #[index]
+    pub is_active: bool,
+    
+    pub full_name: String,
+}
+
+fn main() {
+    println!("Hero Models - Custom Model Example");
+    println!("==================================");
+    
+    // Example usage of the generated implementation
+    println!("CustomUser DB Prefix: {}", CustomUser::db_prefix());
+    
+    let user = CustomUser {
+        base_data: BaseModelData::new(1),
+        login: "johndoe".to_string(),
+        is_active: true,
+        full_name: "John Doe".to_string(),
+    };
+    
+    println!("\nCustomUser ID: {}", user.get_id());
+    println!("CustomUser DB Keys: {:?}", user.db_keys());
+}

heromodels/examples/model_macro_example.rs

@@ -0,0 +1,58 @@
+use heromodels::model;
+use heromodels::models::core::model::{BaseModelData, Model, Index, IndexKey};
+use serde::{Serialize, Deserialize};
+
+// Basic usage
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[model]
+pub struct SimpleUser {
+    pub base_data: BaseModelData,
+    
+    /// @index
+    pub login: String,
+    
+    pub full_name: String,
+}
+
+// With customization options
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[model(prefix = "custom_user")]
+pub struct CustomUser {
+    pub base_data: BaseModelData,
+    
+    /// @index(name = "user_name", key_type = "str")
+    pub login_name: String,
+    
+    /// @index(key_type = "bool")
+    pub is_active: bool,
+    
+    pub full_name: String,
+}
+
+fn main() {
+    println!("Hero Models - Model Macro Example");
+    println!("=================================");
+    
+    // Example usage of the generated implementations
+    println!("SimpleUser DB Prefix: {}", SimpleUser::db_prefix());
+    println!("CustomUser DB Prefix: {}", CustomUser::db_prefix());
+    
+    let user = SimpleUser {
+        base_data: BaseModelData::new(1),
+        login: "johndoe".to_string(),
+        full_name: "John Doe".to_string(),
+    };
+    
+    let custom_user = CustomUser {
+        base_data: BaseModelData::new(2),
+        login_name: "janesmith".to_string(),
+        is_active: true,
+        full_name: "Jane Smith".to_string(),
+    };
+    
+    println!("\nSimpleUser ID: {}", user.get_id());
+    println!("SimpleUser DB Keys: {:?}", user.db_keys());
+    
+    println!("\nCustomUser ID: {}", custom_user.get_id());
+    println!("CustomUser DB Keys: {:?}", custom_user.db_keys());
+}

heromodels/examples/simple_model_example.rs

@@ -0,0 +1,29 @@
+use heromodels::model;
+use heromodels::models::core::model::{BaseModelData, Model, IndexKey};
+use serde::{Serialize, Deserialize};
+
+// Basic usage
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[model]
+pub struct SimpleUser {
+    pub base_data: BaseModelData,
+    pub login: String,
+    pub full_name: String,
+}
+
+fn main() {
+    println!("Hero Models - Simple Model Example");
+    println!("==================================");
+    
+    // Example usage of the generated implementation
+    println!("SimpleUser DB Prefix: {}", SimpleUser::db_prefix());
+    
+    let user = SimpleUser {
+        base_data: BaseModelData::new(1),
+        login: "johndoe".to_string(),
+        full_name: "John Doe".to_string(),
+    };
+    
+    println!("\nSimpleUser ID: {}", user.get_id());
+    println!("SimpleUser DB Keys: {:?}", user.db_keys());
+}