Text Function Simplification

[hipstersmoothie]

What's Changing and Why

Simplify text function to not be recursive and hard to understand.

All it does now is:

1. Split lines based on maxWidth
2. Print each line

This changed alignment in some cases because the old implementation was adding a space to the end of every line. The new one does not.

Also:

• changed the test images to be black text on white backgrounds instead of black on black. Makes testing these functions easier.
• exposed measureText and measureTextHeight

What else might be affected

Just text printing.

Tasks

• Add tests
• Update Documentation
• Update jimp.d.ts
• Add SemVer Label