Replaced Property with Properties

Signed-off-by: Anshukumar123975 <[email protected]>

Author: Anshukumar123975

src/metamodel/concerto_metamodel_1_0_0.rs

@@ -321,8 +321,8 @@ pub struct Properties {
    #[serde(
       rename = "isArray",
    )]
-   pub is_array: bool,
-   
+   pub is_array: Option<bool>,
+
    #[serde(
       rename="decorators",
    )]

src/model_file.rs

@@ -111,7 +111,7 @@ impl ModelFile {
                 name: "$class".to_string(),
                 r#type: None,
                 is_optional: Some(false),
-                is_array: false,
+                is_array: Some(false),
                 decorators: None,
                 validator: None,
                 length_validator: None,