libgnt/libgnt

When someone uses our pc file they shouldn't need to explicitly add gobject to compile
release-2.x.y
2022-05-27, Gary Kramlich
8346f0e78104
When someone uses our pc file they shouldn't need to explicitly add gobject to compile

Testing Done:
Ran configure and verified that `${builddir}/meson-private/gnt.pc` properly had `gobject-2.0` in `Required`

```
Requires: glib-2.0 >= 2.16.0, gobject-2.0
```

Reviewed at https://reviews.imfreedom.org/r/1478/
foreach prog : ['combo', 'focus', 'tv', 'multiwin', 'keys', 'menu', 'parse']
executable(prog,
prog + '.c',
c_args : '-DSTANDALONE',
dependencies : [libgnt_dep, gobject, gmodule],
build_by_default : false)
endforeach
shared_library('wm',
'wm.c',
name_prefix : '',
dependencies : [libgnt_dep, gobject, gmodule],
build_by_default : false)