feat(windows): install language font along with translation

Applicable to Windows now.
But it should be considered for all platform.

We need to include a language font with the translation.

Most complex scripts primarily Indic scripts do not have any standard fonts, that is commonly available across all platform or even between two versions of the OS.

Eg.: Indic fonts available in Windows 7, is not available in Windows 10 by default.

So, if Keyman has to look identical, then there should be away to include language font with the translation.

As of now, only Windows version of Keyman can be localized. In future, when keyman on other platform is also localized. It should be kept in mind to allow a language font part of the language pack.