Added tests for opening and closing
Cleaned up the Dilate method a bit now that there are sweet sweet unit tests to cover
this in more places
Added unit tests for StructuralElement
Clean up StructuralElement
Factored the Read1bppImageData method to a simpler FromBitmap
Moving morpho operations out of OneBppImage
Moved morpho operations into their own test fixture
Common StructuralElement into the text fixture setup
Test copy constructor
More assertations on the byte data constructor test
Fixing a typo in a comment