Added skipping operation MoveToNextLineShowText as well.
Also duplicate the original stream's dictionary which solves disappearing elements (due to
missing SubType / BBox for example).
in making it possible to override methods in the token writer, for example to filter
streams when writing using PdfDocumentBuilder.
The second step is injecting ITokenWriter into PdfDocumentBuilder.
decimal numbers were dependent on the current thread culture for the output file. this meant values like '70.679' were output as '70,679' for cultures using a comma rather than period separator for the floating point (i.e. the whole world). this resulted in the file displaying incorrectly.
to make the project more useful and expose more usable classes we're rearchitecting in the following way. code used to read fonts from external file formats like truetype, adobe font metrics (afm) and adobe type 1 fonts are moving to a new project which doesn't reference most of the pdf logic. the shared logic is moving to a new flat-structured project called core. this is a sort-of onion type architecture, with core being the... core, fonts being the next layer of the onion, pdfpig itself the next. this will then support additional libraries/projects as outer layers of the onion as well as releasing standalone version of the font library as pdfbox does with fontbox.
