Create a tool to list files changed since a tag

[danobi]

As requested by @dragon512

The default (no args) is to ouput all files changed since the
most recent tag (lexicographically speaking) to stdout.

Run it with -h or --help to see a full description.

[danobi]

I'm less convinced this works than when I opened the PR. Testing some more.
No, it works.

[zwoop]

Can we put this into tools/reports ? There's one other similar tool in there.

[dragon512]

Hey Dan,
Sorry i had to take off for personal issue at home. I wanted a script that would:

1. get changes since last tag or a certain format
2. filter out messages
3. possible reformat of certain strings ( such as jira or issues)
4. format the output to some template

for example we would want to have something like:

Version 7.0.2 (09/15/16, solidwallofcode, jkenny)

• change one
• change two

i.e. the reason for the template input as others might want to have a different format.

I was thinking python and jinga would be your friends here.

[jpeach]

Sounds like a git alias, or git shortlog.

[danobi]

Forget about this for now