Feat/embedded fonts (#2174)

* #239 Embedded fonts

* Add boilerplate for font table

* Fix linting

* Fix linting

* Fix odttf naming

* Correct writing of fonts to relationships and font table

new uuid function

* Add font to run

* Add demo

Fix tests

* Add character set support

* Add tests

* Write tests

src/file/paragraph/run/image-run.ts

@@ -70,8 +70,8 @@ export class ImageRun extends Run {
                     .split("")
                     .map((c) => c.charCodeAt(0)),
             );
+            /* c8 ignore next 6 */
         } else {
-            /* c8 ignore next 4 */
             // Not possible to test this branch in NodeJS
             // eslint-disable-next-line @typescript-eslint/no-require-imports, @typescript-eslint/no-var-requires
             const b = require("buf" + "fer");