ofGraphics Documentation and rearrangement
ofImage documentation
ofPath documentation
ofPixels documentation
Polyline and pixels Documentation
ofTesselator documentation
TrueType font documentation
Fixes #3496
Fixes #3495
Fixes #3493
Added getImageType that by accident was deleted
Decimal point in comment
Merge pull request #3490 from HalfdanJ/documentation-graphics

Documentation graphics
Merge pull request #3500 from bakercp/bugfix-ofPath

Fixes #3493
Merge pull request #3498 from bakercp/bugfix-ofDrawRectRounded

Fixes #3496
Merge pull request #3499 from bakercp/bugfix-ofVec4f

Fixes #3495