Add support for .f95 and .cls file

[TheFermi0n]

Since Fortran and LaTeX are already supported by the app, please add support for .f95 and .cls extensions as well.

Terminal output

for Fortran f95 file

kMDItemContentType     = "public.fortran-95-source"
kMDItemContentTypeTree = (
    "public.fortran-95-source",
    "public.fortran-source",
    "public.source-code",
    "public.plain-text",
    "public.text",
    "public.data",
    "public.item",
    "public.content"
)

for LaTeX cls file

kMDItemContentType     = "org.tug.cls"
kMDItemContentTypeTree = (
    "org.tug.cls",
    "public.text",
    "public.data",
    "public.item",
    "public.content",
    "public.plain-text"
)

Inquiry file in app

[sbarex]

Implemented on release 2.1.19 (68).