consoletk 0.1

First version. Allows to place and display a small set of
text-based widgets + keyboard polling.

Widgets:
- labels
- booleans
- horizontal bars (with color changing with value)
- boolean matrices

To use:

 import consoletk

 with ConsoleTk() as console:
    console.moveto(2,4)
    console.write("Hello World", fg = "blue")
    console.relmove(0, 1)
    console.bar(54, maxlength = 30, autocolor = True) # 54%