add amber TI energy output files for testing

[shuail]

Fixes #5.

1. add amber TI output files to test the alchemlyb
2. modify the MANIFEST.in file to include the .out format (amber output file)

[orbeckst]

I updated your comment so that it references #5, the issue that this PR is solving. I will review, hopefully today.

( @dotsdl just in case you have a spare moment and want to do something completely different: I'd be more than happy to have your input, too )

[orbeckst]

I am waiting on PR #7 to be approved. I will then ask you to pick a license for this dataset from recommended open licenses (preferrably CC0 or CC-BY).

[orbeckst]

Looks good but please address the following

1. license (see comments)
2. add docs:
   • add a file docs/amber.rst (model after gmx.rst
   • add a line amber (after gmx) to file docs/index.rst

[orbeckst]

remove empty line (I know, you copied from the GMX dataset... that line did not serve any purpose there either and I took it out in PR #7)

[shuail]

Got it, will change this together with other comments once I get the license info finalized.

[orbeckst]

IMPORTANT: add a line

:License: `NAME <URL>`_

that specifies the license that the dataset is released under. See Contributing: Licenses. Specifically, pick a license from the list recommended conformant licenses (with CC0 or CC-BY preferred). You might have to check with your legal department.

In PR #7 I updated the GMX dataset and you can have a look at it to see what I did there.

[shuail]

Yes, will consult with the company and should get it back soon.

[shuail]

@orbeckst just updated the license info and amber info under docs folder according to the previous comments.

[orbeckst]

awesome!

[orbeckst]

Thanks @shuail , merged. (I squashed all your commits into a single one because in this case all commits belonged together and it gets rid of micro-commits such as "fixed typos".)