MIME Types missing

[sultansoy]

Hi. There're many types not included in your MimeUtils.
For example woff and woff2 for fonts. So I can't use fonts as static resources on web presentation server.
I fix this problem with reflection:
`try {
Field field = MimeUtils.class.getDeclaredField("MIME_TYPES");

        field.setAccessible(true);

        HashMap<String, String> map = (HashMap<String, String>) field.get(null);

        map.put("woff2", "application/font-woff2");

        map.put("woff", "application/font-woff");

    } catch (NoSuchFieldException | IllegalAccessException e) {

        e.printStackTrace();

    }`

But I think it's not good practice. I will create pull request with added fields, but also I want to add static method, which will recieve 2 arguments, verify mime type and put it in the map

[rpannekoek]

Internal Issue ID (for tracking purposes): CRQ-12809

[rpannekoek]

Incorporated in DXA 2.2