Year 3 Pointing addition Bug fixes

Fixed a bug that left the last sector of Year 3 from being checked.
Also, the function entry version was out of date with checking whether target fell off of detector.

TESS Year 3 Proposed Pointings Added

The Year 3 pointings have been added.

Fixes for North pointings

Continued fixes to support Northern TESS pointings.

Year 2 Pointings

Comments broke code. Fix for that.

Year 2 Sector 16 pointing update

Updated the Sector 16 pointing to the planned truth.

TESS Year 2 Pointings!

The preliminary TESS Year 2 Pointings are now available.

More dependency corrections in setup.py

v0.3.2

Update README.md

Add package requirements for install

v0.3.1

Adding package requirments to setup that support py 2 and 3

Target Name Resolving; Callable Wrapper Function

Brett Morris kindly implemented target name resolving.
A wrapper function is now available to call tess_stars2px from your own program.

Reverse function

No changes to basic functionality. Added reverse capability to go from pixel coordinates to RA & Dec. Internal changes to make tool not depend on TESS pointings being aligned with ecliptic plane.