MSDF font generator

[uguraslan]

• generates MSDF font file on-the-fly by using Vite dev server middleware
• if the build command is executed without previously launching the development server and accessing the application in a browser, MSDF fonts corresponding to the TTF fonts in the public/ directory might not be generated yet. To fix this issue, the plugin now makes sure that MSDF files are generated for all TTF fonts within the public/ directory that do not have corresponding MSDF files.
• copies generated files to the build output directory after build is completed.

[uguraslan]

Converted it to draft, because I am going to improve the build process.

[uguraslan]

Now it is ready