feat: Add support for 3d assets through assimp converter

This is a start for #144
It does not support all the 3d formats, but its a good few

src/converters/main.ts

@@ -1,4 +1,7 @@
-import { convert as convertImage, properties as propertiesImage } from "./vips";
+import { 
+  convert as convertImage,
+  properties as propertiesImage
+} from "./vips";
 
 import {
   convert as convertPandoc,
@@ -30,6 +33,11 @@ import {
   properties as propertiesresvg,
 } from "./resvg";
 
+import {
+  convert as convertassimp,
+  properties as propertiesassimp,
+} from "./assimp";
+
 import { normalizeFiletype } from "../helpers/normalizeFiletype";
 
 // This should probably be reconstructed so that the functions are not imported instead the functions hook into this to make the converters more modular
@@ -78,6 +86,10 @@ const properties: Record<string, {
     properties: propertiesGraphicsmagick,
     converter: convertGraphicsmagick,
   },
+  assimp: {
+    properties: propertiesassimp,
+    converter: convertassimp,
+  },
   ffmpeg: {
     properties: propertiesFFmpeg,
     converter: convertFFmpeg,