added full inventory functionality

You can now pickup items, they will be stored in an inventory array. You
can view the array by pressing "i".
//My 'aha' moments keep coming to me while in the shower, considering
moving desktop into shower. First must figure out way to waterproof.
Next buy very long extension cord and cat 5 line.

//still cant draw a map better than a 5 year old, getting very
fustrated, may through a monitor out of window
//getting more fustrated that github doesn't have built in spell check
suggestions yet tells me i spelt a word wrong, which leads me to google
how to spell fustrated: Having such a high level of fustration that you
completely forget to pronounce the first "R" in the word "frustration"