Reduce number of lines of code in `CutoutViewIndicator`

[Cliabhach]

As of cee0bc4, there are

• 501 lines of java code
• 357 lines of comments
• 98 blank lines
  in CutoutViewIndicator.java. This seems a bit much. Could we get it down to 400 lines of java code?

[Cliabhach]

Related to #56 .

[Cliabhach]

Pushing this back to 0.9.0

[Cliabhach]

Most of the removable lines of code are setters and getters. They're formulaic enough, right?

[Cliabhach]

I fear that the work of #76 and #79 will take up the v0.9.0 release...I'm going to push this and the other issues targeted at v0.9.0 to v0.9.1 instead.