move indent.ts over to paragraph and add a #indent method

ts/docx/paragraph/indent.ts

@@ -0,0 +1,27 @@
+import { XmlAttributeComponent, XmlComponent } from "../docx/xml-components";
+
+interface IndentAttributesProperties {
+    left: number;
+    hanging: number;
+}
+
+class IndentAttributes extends XmlAttributeComponent {
+
+    constructor(properties: IndentAttributesProperties) {
+        super({
+            left: "w:left",
+            hanging: "w:hanging",
+        }, properties);
+    }
+}
+
+export class Indent extends XmlComponent {
+
+    constructor(left: number, hanging?: number) {
+        super("w:ind");
+        this.root.push(new IndentAttributes({
+            left: left,
+            hanging: hanging,
+        }));
+    }
+}

ts/docx/paragraph/index.ts

@@ -1,7 +1,9 @@
 import { Num } from "../../numbering/num";
 import { TextRun } from "../run/text-run";
 import { Attributes, XmlComponent } from "../xml-components";
+
 import { ThematicBreak } from "./border";
+import { Indent } from "./indent";
 import { PageBreak } from "./page-break";
 import { ParagraphProperties } from "./properties";
 import { Style } from "./style";
@@ -116,4 +118,9 @@ export class Paragraph extends XmlComponent {
         this.properties.push(new NumberProperties(numbering.id, indentLevel));
         return this;
     }
+
+    public indent(start: number, hanging?: number): Paragraph {
+        this.properties.push(new Indent(start, hanging));
+        return this;
+    }
 }