Changed a lot of stuff (read description)

[Silicasandwhich]

CHANGELOG:

Changes:

• [Windows] Adjusted animation speed of wait and progress cursors from 3/60s to 2/60s
• Updated Work in Progress chart in README
• Added SilicaSandwhich to "contributors" section in README

• [Windows] changed alt select cursor

  Additions:

• Added location select png, svg, and Windows cursor file
• Added person select png, svg, and Windows cursor file
• Set crosshair as the missing tcross cursor ( fixes issue #28 ). You may want to check if what I did works since I don't have much experience with xcursor.