clean up latentstyles to use modern attribute implementation

ts/styles/latent-styles/exceptions.ts

@@ -0,0 +1,27 @@
+import { XmlAttributeComponent, XmlComponent } from "../../docx/xml-components";
+
+interface ILatentStyleExceptionAttributesProperties {
+    name?: string;
+    uiPriority?: string;
+    qFormat?: string;
+    semiHidden?: string;
+    unhideWhenUsed?: string;
+}
+
+class LatentStyleExceptionAttributes extends XmlAttributeComponent<ILatentStyleExceptionAttributesProperties> {
+    protected xmlKeys = {
+        name: "w:name",
+        uiPriority: "w:uiPriority",
+        qFormat: "w:qFormat",
+        semiHidden: "w:semiHidden",
+        unhideWhenUsed: "w:unhideWhenUsed",
+    };
+}
+
+export class LatentStyleException extends XmlComponent {
+
+    constructor(attributes: ILatentStyleExceptionAttributesProperties) {
+        super("w:lsdException");
+        this.root.push(new LatentStyleExceptionAttributes(attributes));
+    }
+}