Allow indent to use other options than left and hanging

This is a breaking change. Existing code using indent will break when padding in the number for left.

ts/docx/paragraph/indent.ts

@@ -3,22 +3,25 @@ import { XmlAttributeComponent, XmlComponent } from "../xml-components";
 interface IIndentAttributesProperties {
     left?: number;
     hanging?: number;
+    firstLine?: number;
+    start?: number;
+    end?: number;
 }
 
 class IndentAttributes extends XmlAttributeComponent<IIndentAttributesProperties> {
     protected xmlKeys = {
         left: "w:left",
         hanging: "w:hanging",
+        firstLine: "w:firstLine",
+        start: "w:start",
+        end: "w:end",
     };
 }
 
 export class Indent extends XmlComponent {
 
-    constructor(left: number, hanging?: number) {
+    constructor(attrs: object) {
         super("w:ind");
-        this.root.push(new IndentAttributes({
-            left: left,
-            hanging: hanging,
-        }));
+        this.root.push(new IndentAttributes(attrs));
     }
 }