New package: grimblast-0.1

[sabuontop]

Testing the changes

• I tested the changes in this PR: YES

New package

• This new package conforms to the package requirements: YES

Local build testing

• I built this PR locally for my native architecture, (x86_64-glibc)

[ahesford]

From the README:

Install by running the Makefile or just copying the grimblast script in your ~/.bin.

From our requirements:

Simple shell scripts are unlikely to be accepted unless they provide considerable value to a broad user base.

We don't repackage simple scripts that can just live in a user's home directory.