Allow passing filetype to :Scratch
Allow passing filetype to :Scratch

For convenience, :Scratch now takes a single optional filetype argument.
This filetype will be applied to the scratch buffer. For example,
:Scratch json will open a JSON scratch buffer.

This applies to all :Scratch variants, e.g. :SScratch.

The argument to :Scratch is Tab-completable, for convenience.

igemnace/vim-config,igemnace/my-vim-config,igemnace/vim-config,igemnace/vim-config